2404397655 has 192 divisors, whose sum is σ = 5066342400. Its totient is φ = 1077753600.

The previous prime is 2404397651. The next prime is 2404397657. The reversal of 2404397655 is 5567934042.

It is not a de Polignac number, because 2404397655 - 2² = 2404397651 is a prime.

It is a super-2 number, since 2×2404397655² = 11562256166738998050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2404397655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404397651) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 18932202 + ... + 18932328.

It is an arithmetic number, because the mean of its divisors is an integer number (26387200).

Almost surely, 2^2404397655 is an apocalyptic number.

2404397655 is an abundant number, since it is smaller than the sum of its proper divisors (2661944745).

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

2404397655 is a wasteful number, since it uses less digits than its factorization.

2404397655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 2404397655 is about 49034.6576922894. The cubic root of 2404397655 is about 1339.6831609631.

The spelling of 2404397655 in words is "two billion, four hundred four million, three hundred ninety-seven thousand, six hundred fifty-five".