508948638 has 32 divisors (see below), whose sum is σ = 1146258432. Its totient is φ = 149251200.

The previous prime is 508948589. The next prime is 508948711. The reversal of 508948638 is 836849805.

It is a super-2 number, since 2×508948638² = 518057432244110088, which contains 22 as substring.

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, 122331 + ... + 126422.

It is an arithmetic number, because the mean of its divisors is an integer number (35820576).

Almost surely, 2^508948638 is an apocalyptic number.

508948638 is an abundant number, since it is smaller than the sum of its proper divisors (637309794).

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

508948638 is a wasteful number, since it uses less digits than its factorization.

508948638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248800.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 508948638 is about 22559.8900263277. The cubic root of 508948638 is about 798.4075813149.

The spelling of 508948638 in words is "five hundred eight million, nine hundred forty-eight thousand, six hundred thirty-eight".