1040866901 has 4 divisors (see below), whose sum is σ = 1065073152. Its totient is φ = 1016660652.

The previous prime is 1040866891. The next prime is 1040866951. The reversal of 1040866901 is 1096680401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1040866901 - 2¹⁸ = 1040604757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040866951) 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, 12103061 + ... + 12103146.

It is an arithmetic number, because the mean of its divisors is an integer number (266268288).

Almost surely, 2^1040866901 is an apocalyptic number.

It is an amenable number.

1040866901 is a deficient number, since it is larger than the sum of its proper divisors (24206251).

1040866901 is an equidigital number, since it uses as much as digits as its factorization.

1040866901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24206250.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1040866901 is about 32262.4689228831. The cubic root of 1040866901 is about 1013.4408349011.

The spelling of 1040866901 in words is "one billion, forty million, eight hundred sixty-six thousand, nine hundred one".