1040036731 has 4 divisors (see below), whose sum is σ = 1040802264. Its totient is φ = 1039271200.

The previous prime is 1040036677. The next prime is 1040036783. The reversal of 1040036731 is 1376300401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1376300401 = 7 ⋅196614343.

It is a cyclic number.

It is not a de Polignac number, because 1040036731 - 2¹⁹ = 1039512443 is a prime.

It is a super-2 number, since 2×1040036731² = 2163352803658332722, 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 = 1040036696 and 1040036705.

It is not an unprimeable number, because it can be changed into a prime (1040031731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380725 + ... + 383446.

It is an arithmetic number, because the mean of its divisors is an integer number (260200566).

Almost surely, 2^1040036731 is an apocalyptic number.

1040036731 is a deficient number, since it is larger than the sum of its proper divisors (765533).

1040036731 is an equidigital number, since it uses as much as digits as its factorization.

1040036731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765532.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1040036731 is about 32249.6004781455. The cubic root of 1040036731 is about 1013.1713313586.

The spelling of 1040036731 in words is "one billion, forty million, thirty-six thousand, seven hundred thirty-one".