1140224401 has 4 divisors (see below), whose sum is σ = 1140342052. Its totient is φ = 1140106752.

The previous prime is 1140224381. The next prime is 1140224413. The reversal of 1140224401 is 1044220411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 674700625 + 465523776 = 25975^2 + 21576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140224401 - 2⁷ = 1140224273 is a prime.

It is a super-2 number, since 2×1140224401² = 2600223369271617602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140224441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42840 + ... + 64153.

It is an arithmetic number, because the mean of its divisors is an integer number (285085513).

Almost surely, 2^1140224401 is an apocalyptic number.

It is an amenable number.

1140224401 is a deficient number, since it is larger than the sum of its proper divisors (117651).

1140224401 is a wasteful number, since it uses less digits than its factorization.

1140224401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117650.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1140224401 is about 33767.2089607655. The cubic root of 1140224401 is about 1044.7124659341.

Adding to 1140224401 its reverse (1044220411), we get a palindrome (2184444812).

The spelling of 1140224401 in words is "one billion, one hundred forty million, two hundred twenty-four thousand, four hundred one".