238906980 has 216 divisors, whose sum is σ = 820063608. Its totient is φ = 55959552.

The previous prime is 238906919. The next prime is 238906991. The reversal of 238906980 is 89609832.

It can be written as a sum of positive squares in 4 ways, for example, as 19044 + 238887936 = 138^2 + 15456^2 .

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 71 ways as a sum of consecutive naturals, for example, 1237764 + ... + 1237956.

Almost surely, 2^238906980 is an apocalyptic number.

238906980 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 238906980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410031804).

238906980 is an abundant number, since it is smaller than the sum of its proper divisors (581156628).

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

238906980 is a wasteful number, since it uses less digits than its factorization.

238906980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 238906980 is about 15456.6160591509. The cubic root of 238906980 is about 620.5016578088.

The spelling of 238906980 in words is "two hundred thirty-eight million, nine hundred six thousand, nine hundred eighty".