1042731 has 6 divisors (see below), whose sum is σ = 1506180. Its totient is φ = 695148.

The previous prime is 1042709. The next prime is 1042733. The reversal of 1042731 is 1372401.

It is not a de Polignac number, because 1042731 - 2¹⁵ = 1009963 is a prime.

It is a super-2 number, since 2×1042731² = 2174575876722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1042733) 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 5 ways as a sum of consecutive naturals, for example, 57921 + ... + 57938.

It is an arithmetic number, because the mean of its divisors is an integer number (251030).

2^1042731 is an apocalyptic number.

1042731 is a deficient number, since it is larger than the sum of its proper divisors (463449).

1042731 is a wasteful number, since it uses less digits than its factorization.

1042731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115865 (or 115862 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1042731 is about 1021.1420077541. The cubic root of 1042731 is about 101.4045467891.

The spelling of 1042731 in words is "one million, forty-two thousand, seven hundred thirty-one".