1040396899 has 4 divisors (see below), whose sum is σ = 1053566560. Its totient is φ = 1027227240.

The previous prime is 1040396897. The next prime is 1040396939. The reversal of 1040396899 is 9986930401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1040396899 - 2¹ = 1040396897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040396897) 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, 6584712 + ... + 6584869.

It is an arithmetic number, because the mean of its divisors is an integer number (263391640).

Almost surely, 2^1040396899 is an apocalyptic number.

1040396899 is a deficient number, since it is larger than the sum of its proper divisors (13169661).

1040396899 is an equidigital number, since it uses as much as digits as its factorization.

1040396899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13169660.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1040396899 is about 32255.1840639609. The cubic root of 1040396899 is about 1013.2882726697.

The spelling of 1040396899 in words is "one billion, forty million, three hundred ninety-six thousand, eight hundred ninety-nine".