238628870 has 32 divisors (see below), whose sum is σ = 444911616. Its totient is φ = 92092000.

The previous prime is 238628861. The next prime is 238628879. The reversal of 238628870 is 78826832.

It is an interprime number because it is at equal distance from previous prime (238628861) and next prime (238628879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238628879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29795 + ... + 36945.

It is an arithmetic number, because the mean of its divisors is an integer number (13903488).

Almost surely, 2^238628870 is an apocalyptic number.

238628870 is a deficient number, since it is larger than the sum of its proper divisors (206282746).

238628870 is a wasteful number, since it uses less digits than its factorization.

238628870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 238628870 is about 15447.6169683223. The cubic root of 238628870 is about 620.2607903925.

The spelling of 238628870 in words is "two hundred thirty-eight million, six hundred twenty-eight thousand, eight hundred seventy".