238915030 has 32 divisors (see below), whose sum is σ = 449924544. Its totient is φ = 91170816.

The previous prime is 238914983. The next prime is 238915051. The reversal of 238915030 is 30519832.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 238914983 and 238915001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103974 + ... + 106246.

It is an arithmetic number, because the mean of its divisors is an integer number (14060142).

Almost surely, 2^238915030 is an apocalyptic number.

238915030 is a deficient number, since it is larger than the sum of its proper divisors (211009514).

238915030 is a wasteful number, since it uses less digits than its factorization.

238915030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 238915030 is about 15456.8764632444. The cubic root of 238915030 is about 620.5086270237.

The spelling of 238915030 in words is "two hundred thirty-eight million, nine hundred fifteen thousand, thirty".