42992422 has 32 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 18238080.

The previous prime is 42992419. The next prime is 42992431. The reversal of 42992422 is 22429924.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51573 + ... + 52399.

It is an arithmetic number, because the mean of its divisors is an integer number (2347380).

Almost surely, 2^42992422 is an apocalyptic number.

42992422 is a deficient number, since it is larger than the sum of its proper divisors (32123738).

42992422 is a wasteful number, since it uses less digits than its factorization.

42992422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its digits is 20736, while the sum is 34.

The square root of 42992422 is about 6556.8606817592. The cubic root of 42992422 is about 350.3192244028.

The spelling of 42992422 in words is "forty-two million, nine hundred ninety-two thousand, four hundred twenty-two".