23486387400 has 1152 divisors, whose sum is σ = 102953410560. Its totient is φ = 4852224000.

The previous prime is 23486387387. The next prime is 23486387401. The reversal of 23486387400 is 478368432.

23486387400 is a `hidden beast` number, since 2 + 3 + 4 + 8 + 638 + 7 + 4 + 0 + 0 = 666.

It is a super-2 number, since 2×23486387400² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (23486387401) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 179285335 + ... + 179285465.

It is an arithmetic number, because the mean of its divisors is an integer number (89369280).

Almost surely, 2^23486387400 is an apocalyptic number.

23486387400 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 23486387400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51476705280).

23486387400 is an abundant number, since it is smaller than the sum of its proper divisors (79467023160).

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

23486387400 is a wasteful number, since it uses less digits than its factorization.

23486387400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 23486387400 in words is "twenty-three billion, four hundred eighty-six million, three hundred eighty-seven thousand, four hundred".