42690392 has 16 divisors (see below), whose sum is σ = 83525040. Its totient is φ = 20417056.

The previous prime is 42690367. The next prime is 42690413. The reversal of 42690392 is 29309624.

42690392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42690392² = 3644939138227328, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115823 + ... + 116190.

It is an arithmetic number, because the mean of its divisors is an integer number (5220315).

Almost surely, 2^42690392 is an apocalyptic number.

It is an amenable number.

42690392 is a deficient number, since it is larger than the sum of its proper divisors (40834648).

42690392 is a wasteful number, since it uses less digits than its factorization.

42690392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232042 (or 232038 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 42690392 is about 6533.7884875469. The cubic root of 42690392 is about 349.4969426047.

The spelling of 42690392 in words is "forty-two million, six hundred ninety thousand, three hundred ninety-two".