23899028400 has 1440 divisors, whose sum is σ = 105737676800. Its totient is φ = 5076172800.

The previous prime is 23899028359. The next prime is 23899028443. The reversal of 23899028400 is 482099832.

23899028400 is a `hidden beast` number, since 238 + 9 + 9 + 0 + 2 + 8 + 400 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 770936385 + ... + 770936415.

Almost surely, 2^23899028400 is an apocalyptic number.

23899028400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23899028400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52868838400).

23899028400 is an abundant number, since it is smaller than the sum of its proper divisors (81838648400).

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

23899028400 is a wasteful number, since it uses less digits than its factorization.

23899028400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 23899028400 in words is "twenty-three billion, eight hundred ninety-nine million, twenty-eight thousand, four hundred".