1040139807 has 24 divisors (see below), whose sum is σ = 1665326592. Its totient is φ = 575190000.

The previous prime is 1040139799. The next prime is 1040139889. The reversal of 1040139807 is 7089310401.

It is not a de Polignac number, because 1040139807 - 2³ = 1040139799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040119807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109569 + ... + 118682.

It is an arithmetic number, because the mean of its divisors is an integer number (69388608).

Almost surely, 2^1040139807 is an apocalyptic number.

1040139807 is a deficient number, since it is larger than the sum of its proper divisors (625186785).

1040139807 is a wasteful number, since it uses less digits than its factorization.

1040139807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228299 (or 228292 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1040139807 is about 32251.1985358684. The cubic root of 1040139807 is about 1013.2048013939.

The spelling of 1040139807 in words is "one billion, forty million, one hundred thirty-nine thousand, eight hundred seven".