42602731 has 16 divisors (see below), whose sum is σ = 48656160. Its totient is φ = 37048320.

The previous prime is 42602719. The next prime is 42602761. The reversal of 42602731 is 13720624.

It is a cyclic number.

It is not a de Polignac number, because 42602731 - 2⁷ = 42602603 is a prime.

It is a super-2 number, since 2×42602731² = 3629985377316722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42602696 and 42602705.

It is not an unprimeable number, because it can be changed into a prime (42602701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11635 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (3041010).

Almost surely, 2^42602731 is an apocalyptic number.

42602731 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42602731 is a deficient number, since it is larger than the sum of its proper divisors (6053429).

42602731 is a wasteful number, since it uses less digits than its factorization.

42602731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 42602731 is about 6527.0767576305. The cubic root of 42602731 is about 349.2575581725.

The spelling of 42602731 in words is "forty-two million, six hundred two thousand, seven hundred thirty-one".