538149630 has 32 divisors (see below), whose sum is σ = 1347715584. Its totient is φ = 137266976.

The previous prime is 538149629. The next prime is 538149643. The reversal of 538149630 is 36941835.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 389274 + ... + 390653.

It is an arithmetic number, because the mean of its divisors is an integer number (42116112).

Almost surely, 2^538149630 is an apocalyptic number.

538149630 is an abundant number, since it is smaller than the sum of its proper divisors (809565954).

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

538149630 is a wasteful number, since it uses less digits than its factorization.

538149630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779960.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 538149630 is about 23198.0522889315. The cubic root of 538149630 is about 813.3940952022.

The spelling of 538149630 in words is "five hundred thirty-eight million, one hundred forty-nine thousand, six hundred thirty".