138004565400 has 384 divisors, whose sum is σ = 515633664000. Its totient is φ = 33723578880.

The previous prime is 138004565341. The next prime is 138004565417. The reversal of 138004565400 is 4565400831.

It is a happy number.

138004565400 is a `hidden beast` number, since 13 + 80 + 0 + 4 + 565 + 4 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9750729 + ... + 9764871.

It is an arithmetic number, because the mean of its divisors is an integer number (1342796000).

Almost surely, 2^138004565400 is an apocalyptic number.

138004565400 is a gapful number since it is divisible by the number (10) 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 138004565400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257816832000).

138004565400 is an abundant number, since it is smaller than the sum of its proper divisors (377629098600).

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

138004565400 is a wasteful number, since it uses less digits than its factorization.

138004565400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14320 (or 14305 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 138004565400 in words is "one hundred thirty-eight billion, four million, five hundred sixty-five thousand, four hundred".