42993492 has 12 divisors (see below), whose sum is σ = 100318176. Its totient is φ = 14331160.

The previous prime is 42993491. The next prime is 42993499. The reversal of 42993492 is 29439924.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42993491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791384 + ... + 1791407.

It is an arithmetic number, because the mean of its divisors is an integer number (8359848).

Almost surely, 2^42993492 is an apocalyptic number.

It is an amenable number.

42993492 is an abundant number, since it is smaller than the sum of its proper divisors (57324684).

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

42993492 is a wasteful number, since it uses less digits than its factorization.

42993492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582798 (or 3582796 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 42993492 is about 6556.9422751767. The cubic root of 42993492 is about 350.3221306395.

The spelling of 42993492 in words is "forty-two million, nine hundred ninety-three thousand, four hundred ninety-two".