238542372 has 18 divisors (see below), whose sum is σ = 602982198. Its totient is φ = 79514112.

The previous prime is 238542349. The next prime is 238542373. The reversal of 238542372 is 273245832.

238542372 is a `hidden beast` number, since 238 + 54 + 2 + 372 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156350016 + 82192356 = 12504^2 + 9066^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6626177 = 238542372 / (2 + 3 + 8 + 5 + 4 + 2 + 3 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (238542373) 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, 3313053 + ... + 3313124.

It is an arithmetic number, because the mean of its divisors is an integer number (33499011).

Almost surely, 2^238542372 is an apocalyptic number.

It is an amenable number.

238542372 is an abundant number, since it is smaller than the sum of its proper divisors (364439826).

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

238542372 is a wasteful number, since it uses less digits than its factorization.

238542372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626187 (or 6626182 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 238542372 is about 15444.8169947073. The cubic root of 238542372 is about 620.1858374588.

The spelling of 238542372 in words is "two hundred thirty-eight million, five hundred forty-two thousand, three hundred seventy-two".