42331556 has 24 divisors (see below), whose sum is σ = 75828480. Its totient is φ = 20671200.

The previous prime is 42331519. The next prime is 42331559. The reversal of 42331556 is 65513324.

42331556 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 2×42331556² = 3583921266762272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42331559) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42221 + ... + 43211.

It is an arithmetic number, because the mean of its divisors is an integer number (3159520).

Almost surely, 2^42331556 is an apocalyptic number.

It is an amenable number.

42331556 is a deficient number, since it is larger than the sum of its proper divisors (33496924).

42331556 is a wasteful number, since it uses less digits than its factorization.

42331556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1233 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 42331556 is about 6506.2705138966. The cubic root of 42331556 is about 348.5149486496.

The spelling of 42331556 in words is "forty-two million, three hundred thirty-one thousand, five hundred fifty-six".