38451398400 has 162 divisors, whose sum is σ = 137472633480. Its totient is φ = 10253690880.

The previous prime is 38451398357. The next prime is 38451398417. The reversal of 38451398400 is 489315483.

38451398400 is a `hidden beast` number, since 3 + 8 + 4 + 513 + 98 + 40 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 276180 + ... + 391379.

Almost surely, 2^38451398400 is an apocalyptic number.

38451398400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38451398400 is an abundant number, since it is smaller than the sum of its proper divisors (99021235080).

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

38451398400 is a wasteful number, since it uses less digits than its factorization.

38451398400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667591 (or 667569 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 38451398400 in words is "thirty-eight billion, four hundred fifty-one million, three hundred ninety-eight thousand, four hundred".