42031356 has 24 divisors (see below), whose sum is σ = 99418704. Its totient is φ = 13818240.

The previous prime is 42031349. The next prime is 42031369. The reversal of 42031356 is 65313024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23115 + ... + 24866.

It is an arithmetic number, because the mean of its divisors is an integer number (4142446).

Almost surely, 2^42031356 is an apocalyptic number.

It is an amenable number.

42031356 is an abundant number, since it is smaller than the sum of its proper divisors (57387348).

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

42031356 is a wasteful number, since it uses less digits than its factorization.

42031356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48061 (or 48059 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 42031356 is about 6483.1594149766. The cubic root of 42031356 is about 347.6891463765.

The spelling of 42031356 in words is "forty-two million, thirty-one thousand, three hundred fifty-six".