238357642 has 16 divisors (see below), whose sum is σ = 364879080. Its totient is φ = 116738752.

The previous prime is 238357621. The next prime is 238357709. The reversal of 238357642 is 246753832.

It can be written as a sum of positive squares in 4 ways, for example, as 212255761 + 26101881 = 14569^2 + 5109^2 .

It is a junction number, because it is equal to n+sod(n) for n = 238357595 and 238357604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80484 + ... + 83392.

Almost surely, 2^238357642 is an apocalyptic number.

238357642 is a deficient number, since it is larger than the sum of its proper divisors (126521438).

238357642 is a wasteful number, since it uses less digits than its factorization.

238357642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737.

The product of its digits is 241920, while the sum is 40.

The square root of 238357642 is about 15438.8355130819. The cubic root of 238357642 is about 620.0257030621.

It can be divided in two parts, 2383 and 57642, that added together give a square (60025 = 245²).

The spelling of 238357642 in words is "two hundred thirty-eight million, three hundred fifty-seven thousand, six hundred forty-two".