42942916 has 6 divisors (see below), whose sum is σ = 75150110. Its totient is φ = 21471456.

The previous prime is 42942883. The next prime is 42942923. The reversal of 42942916 is 61924924.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26050816 + 16892100 = 5104^2 + 4110^2 .

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 as a sum of consecutive naturals, namely, 5367861 + ... + 5367868.

Almost surely, 2^42942916 is an apocalyptic number.

It is an amenable number.

42942916 is a deficient number, since it is larger than the sum of its proper divisors (32207194).

42942916 is a wasteful number, since it uses less digits than its factorization.

42942916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10735733 (or 10735731 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 42942916 is about 6553.0844645861. The cubic root of 42942916 is about 350.1847079478.

The spelling of 42942916 in words is "forty-two million, nine hundred forty-two thousand, nine hundred sixteen".