3440878281 has 9 divisors (see below), whose sum is σ = 4970411719. Its totient is φ = 2293801536.

The previous prime is 3440878279. The next prime is 3440878297. The reversal of 3440878281 is 1828780443.

The square root of 3440878281 is 58659.

It is a perfect power (a square), and thus also a powerful number.

3440878281 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2911142025 + 529736256 = 53955^2 + 23016^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3440878281 - 2¹ = 3440878279 is a prime.

It is a super-2 number, since 2×3440878281² = 23679286689315029922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3440878241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 166201 + ... + 185753.

Almost surely, 2^3440878281 is an apocalyptic number.

3440878281 is the 58659-th square number.

3440878281 is the 29330-th centered octagonal number.

It is an amenable number.

3440878281 is a deficient number, since it is larger than the sum of its proper divisors (1529533438).

3440878281 is an frugal number, since it uses more digits than its factorization.

3440878281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39112 (or 19556 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The cubic root of 3440878281 is about 1509.6969233692.

It can be divided in two parts, 3440 and 878281, that added together give a square (881721 = 939²).

The spelling of 3440878281 in words is "three billion, four hundred forty million, eight hundred seventy-eight thousand, two hundred eighty-one".