238992930 has 96 divisors (see below), whose sum is σ = 703055808. Its totient is φ = 57931200.

The previous prime is 238992911. The next prime is 238992959. The reversal of 238992930 is 39299832.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22260 + ... + 31200.

It is an arithmetic number, because the mean of its divisors is an integer number (7323498).

Almost surely, 2^238992930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238992930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351527904).

238992930 is an abundant number, since it is smaller than the sum of its proper divisors (464062878).

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

238992930 is a wasteful number, since it uses less digits than its factorization.

238992930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 238992930 is about 15459.3961719079. The cubic root of 238992930 is about 620.5760601600.

The spelling of 238992930 in words is "two hundred thirty-eight million, nine hundred ninety-two thousand, nine hundred thirty".