2720440589428 has 12 divisors (see below), whose sum is σ = 4760786377732. Its totient is φ = 1360215910080.

The previous prime is 2720440589389. The next prime is 2720440589599. The reversal of 2720440589428 is 8249850440272.

It can be written as a sum of positive squares in 2 ways, for example, as 1514775100644 + 1205665488784 = 1230762^2 + 1098028^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587026 + ... + 2405302.

Almost surely, 2^{2720440589428} is an apocalyptic number.

It is an amenable number.

2720440589428 is a deficient number, since it is larger than the sum of its proper divisors (2040345788304).

2720440589428 is a wasteful number, since it uses less digits than its factorization.

2720440589428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192322 (or 2192320 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 2720440589428 in words is "two trillion, seven hundred twenty billion, four hundred forty million, five hundred eighty-nine thousand, four hundred twenty-eight".