2402404440 has 64 divisors (see below), whose sum is σ = 7210598400. Its totient is φ = 640340352.

The previous prime is 2402404429. The next prime is 2402404469. The reversal of 2402404440 is 444042042.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2402404440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388009 + ... + 394151.

It is an arithmetic number, because the mean of its divisors is an integer number (112665600).

Almost surely, 2^2402404440 is an apocalyptic number.

2402404440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402404440 is an abundant number, since it is smaller than the sum of its proper divisors (4808193960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2402404440 is a wasteful number, since it uses less digits than its factorization.

2402404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416 (or 9412 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 2402404440 is about 49014.3289253255. The cubic root of 2402404440 is about 1339.3128652009.

Adding to 2402404440 its reverse (444042042), we get a palindrome (2846446482).

The spelling of 2402404440 in words is "two billion, four hundred two million, four hundred four thousand, four hundred forty".