42994032 has 20 divisors (see below), whose sum is σ = 111068040. Its totient is φ = 14331328.

The previous prime is 42994013. The next prime is 42994033. The reversal of 42994032 is 23049924.

It is a junction number, because it is equal to n+sod(n) for n = 42993984 and 42994002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42994033) 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, 447807 + ... + 447902.

It is an arithmetic number, because the mean of its divisors is an integer number (5553402).

Almost surely, 2^42994032 is an apocalyptic number.

It is an amenable number.

42994032 is an abundant number, since it is smaller than the sum of its proper divisors (68074008).

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

42994032 is a wasteful number, since it uses less digits than its factorization.

42994032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895720 (or 895714 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 42994032 is about 6556.9834527777. The cubic root of 42994032 is about 350.3235973201.

The spelling of 42994032 in words is "forty-two million, nine hundred ninety-four thousand, thirty-two".