238130487 has 12 divisors (see below), whose sum is σ = 393104400. Its totient is φ = 136074528.

The previous prime is 238130471. The next prime is 238130507. The reversal of 238130487 is 784031832.

It is not a de Polignac number, because 238130487 - 2⁴ = 238130471 is a prime.

It is a super-2 number, since 2×238130487² = 113412257677714338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238130467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1889862 + ... + 1889987.

It is an arithmetic number, because the mean of its divisors is an integer number (32758700).

Almost surely, 2^238130487 is an apocalyptic number.

238130487 is a deficient number, since it is larger than the sum of its proper divisors (154973913).

238130487 is a wasteful number, since it uses less digits than its factorization.

238130487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779862 (or 3779859 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 238130487 is about 15431.4771489965. The cubic root of 238130487 is about 619.8286788174.

The spelling of 238130487 in words is "two hundred thirty-eight million, one hundred thirty thousand, four hundred eighty-seven".