1040667731 has 4 divisors (see below), whose sum is σ = 1044219792. Its totient is φ = 1037115672.

The previous prime is 1040667713. The next prime is 1040667739. The reversal of 1040667731 is 1377660401.

1040667731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1377660401 = 13 ⋅105973877.

It is a cyclic number.

It is not a de Polignac number, because 1040667731 - 2¹⁴ = 1040651347 is a prime.

It is a super-2 number, since 2×1040667731² = 2165978652689376722, 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 = 1040667691 and 1040667700.

It is not an unprimeable number, because it can be changed into a prime (1040667739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775591 + ... + 1776176.

It is an arithmetic number, because the mean of its divisors is an integer number (261054948).

Almost surely, 2^1040667731 is an apocalyptic number.

1040667731 is a deficient number, since it is larger than the sum of its proper divisors (3552061).

1040667731 is an equidigital number, since it uses as much as digits as its factorization.

1040667731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552060.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1040667731 is about 32259.3820616577. The cubic root of 1040667731 is about 1013.3761901047.

The spelling of 1040667731 in words is "one billion, forty million, six hundred sixty-seven thousand, seven hundred thirty-one".