238978 has 4 divisors (see below), whose sum is σ = 358470. Its totient is φ = 119488.

The previous prime is 238967. The next prime is 238991. The reversal of 238978 is 879832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 227529 + 11449 = 477^2 + 107^2 .

It is a super-2 number, since 2×238978² = 114220968968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59743 + ... + 59746.

2²³⁸⁹⁷⁸ is an apocalyptic number.

238978 is a deficient number, since it is larger than the sum of its proper divisors (119492).

238978 is a wasteful number, since it uses less digits than its factorization.

238978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119491.

The product of its digits is 24192, while the sum is 37.

The square root of 238978 is about 488.8537613643. The cubic root of 238978 is about 62.0563137332.

The spelling of 238978 in words is "two hundred thirty-eight thousand, nine hundred seventy-eight".