42918536 has 16 divisors (see below), whose sum is σ = 81270540. Its totient is φ = 21246400.

The previous prime is 42918517. The next prime is 42918571. The reversal of 42918536 is 63581924.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30316036 + 12602500 = 5506^2 + 3550^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42918536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25751 + ... + 27366.

Almost surely, 2^42918536 is an apocalyptic number.

It is an amenable number.

42918536 is a deficient number, since it is larger than the sum of its proper divisors (38352004).

42918536 is a wasteful number, since it uses less digits than its factorization.

42918536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53224 (or 53220 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 42918536 is about 6551.2240077714. The cubic root of 42918536 is about 350.1184252315.

The spelling of 42918536 in words is "forty-two million, nine hundred eighteen thousand, five hundred thirty-six".