238979148 has 12 divisors (see below), whose sum is σ = 557618040. Its totient is φ = 79659712.

The previous prime is 238979137. The next prime is 238979159. The reversal of 238979148 is 841979832.

It is an interprime number because it is at equal distance from previous prime (238979137) and next prime (238979159).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×238979148² = 114222066357611808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 238979148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9957453 + ... + 9957476.

It is an arithmetic number, because the mean of its divisors is an integer number (46468170).

Almost surely, 2^238979148 is an apocalyptic number.

It is an amenable number.

238979148 is an abundant number, since it is smaller than the sum of its proper divisors (318638892).

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

238979148 is a wasteful number, since it uses less digits than its factorization.

238979148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914936 (or 19914934 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 238979148 is about 15458.9504171532. The cubic root of 238979148 is about 620.5641310154.

The spelling of 238979148 in words is "two hundred thirty-eight million, nine hundred seventy-nine thousand, one hundred forty-eight".