42372831 has 16 divisors (see below), whose sum is σ = 62058240. Its totient is φ = 25597440.

The previous prime is 42372821. The next prime is 42372893. The reversal of 42372831 is 13827324.

It is not a de Polignac number, because 42372831 - 2⁶ = 42372767 is a prime.

It is a super-2 number, since 2×42372831² = 3590913613909122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42372821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14850 + ... + 17471.

It is an arithmetic number, because the mean of its divisors is an integer number (3878640).

Almost surely, 2^42372831 is an apocalyptic number.

42372831 is a deficient number, since it is larger than the sum of its proper divisors (19685409).

42372831 is a wasteful number, since it uses less digits than its factorization.

42372831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32366.

The product of its digits is 8064, while the sum is 30.

The square root of 42372831 is about 6509.4416811275. The cubic root of 42372831 is about 348.6281839685.

The spelling of 42372831 in words is "forty-two million, three hundred seventy-two thousand, eight hundred thirty-one".