42931850 has 36 divisors (see below), whose sum is σ = 86331714. Its totient is φ = 15790080.

The previous prime is 42931843. The next prime is 42931883. The reversal of 42931850 is 5813924.

It can be written as a sum of positive squares in 9 ways, for example, as 18498601 + 24433249 = 4301^2 + 4943^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 166922 + ... + 167178.

Almost surely, 2^42931850 is an apocalyptic number.

42931850 is an abundant number, since it is smaller than the sum of its proper divisors (43399864).

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

42931850 is a wasteful number, since it uses less digits than its factorization.

42931850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 42931850 is about 6552.2400749667. The cubic root of 42931850 is about 350.1546255559.

The spelling of 42931850 in words is "forty-two million, nine hundred thirty-one thousand, eight hundred fifty".