42940332 has 72 divisors (see below), whose sum is σ = 113393280. Its totient is φ = 13685760.

The previous prime is 42940309. The next prime is 42940343. The reversal of 42940332 is 23304924.

It is a happy number.

It is a super-2 number, since 2×42940332² = 3687744224540448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42940296 and 42940305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121468 + ... + 121820.

Almost surely, 2^42940332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42940332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56696640).

42940332 is an abundant number, since it is smaller than the sum of its proper divisors (70452948).

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

42940332 is a wasteful number, since it uses less digits than its factorization.

42940332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 42940332 is about 6552.8873025560. The cubic root of 42940332 is about 350.1776839299.

The spelling of 42940332 in words is "forty-two million, nine hundred forty thousand, three hundred thirty-two".