238902386900 has 72 divisors (see below), whose sum is σ = 542492403264. Its totient is φ = 91146880000.

The previous prime is 238902386873. The next prime is 238902386917. The reversal of 238902386900 is 9683209832.

It is a super-2 number, since 2×238902386900² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 664775 + ... + 959025.

It is an arithmetic number, because the mean of its divisors is an integer number (7534616712).

Almost surely, 2^238902386900 is an apocalyptic number.

238902386900 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 238902386900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271246201632).

238902386900 is an abundant number, since it is smaller than the sum of its proper divisors (303590016364).

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

238902386900 is a wasteful number, since it uses less digits than its factorization.

238902386900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294641 (or 294634 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 238902386900 in words is "two hundred thirty-eight billion, nine hundred two million, three hundred eighty-six thousand, nine hundred".