238865472 has 42 divisors (see below), whose sum is σ = 684666398. Its totient is φ = 79621632.

The previous prime is 238865449. The next prime is 238865477. The reversal of 238865472 is 274568832.

238865472 is a `hidden beast` number, since 23 + 8 + 86 + 547 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 232989696 + 5875776 = 15264^2 + 2424^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238865477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206773 + ... + 207924.

Almost surely, 2^238865472 is an apocalyptic number.

It is an amenable number.

238865472 is an abundant number, since it is smaller than the sum of its proper divisors (445800926).

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

238865472 is a wasteful number, since it uses less digits than its factorization.

238865472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414715 (or 414702 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 238865472 is about 15455.2732748405. The cubic root of 238865472 is about 620.4657201473.

The spelling of 238865472 in words is "two hundred thirty-eight million, eight hundred sixty-five thousand, four hundred seventy-two".