238992086 has 32 divisors (see below), whose sum is σ = 389670912. Its totient is φ = 109502080.

The previous prime is 238992073. The next prime is 238992107. The reversal of 238992086 is 680299832.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 238992086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554291 + ... + 554721.

It is an arithmetic number, because the mean of its divisors is an integer number (12177216).

Almost surely, 2^238992086 is an apocalyptic number.

238992086 is a deficient number, since it is larger than the sum of its proper divisors (150678826).

238992086 is a wasteful number, since it uses less digits than its factorization.

238992086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 238992086 is about 15459.3688745692. The cubic root of 238992086 is about 620.5753296408.

The spelling of 238992086 in words is "two hundred thirty-eight million, nine hundred ninety-two thousand, eighty-six".