74400386800 has 60 divisors (see below), whose sum is σ = 178776252280. Its totient is φ = 29755272960.

The previous prime is 74400386783. The next prime is 74400386807. The reversal of 74400386800 is 868300447.

It is a super-2 number, since 2×74400386800² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74400386807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3356554 + ... + 3378646.

Almost surely, 2^74400386800 is an apocalyptic number.

It is an amenable number.

74400386800 is an abundant number, since it is smaller than the sum of its proper divisors (104375865480).

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

74400386800 is a wasteful number, since it uses less digits than its factorization.

74400386800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30530 (or 30519 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 74400386800 in words is "seventy-four billion, four hundred million, three hundred eighty-six thousand, eight hundred".