1040615905 has 16 divisors (see below), whose sum is σ = 1473168384. Its totient is φ = 690546240.

The previous prime is 1040615899. The next prime is 1040615909. The reversal of 1040615905 is 5095160401.

It is not a de Polignac number, because 1040615905 - 2⁷ = 1040615777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040615909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478462 + ... + 480631.

It is an arithmetic number, because the mean of its divisors is an integer number (92073024).

Almost surely, 2^1040615905 is an apocalyptic number.

It is an amenable number.

1040615905 is a deficient number, since it is larger than the sum of its proper divisors (432552479).

1040615905 is an equidigital number, since it uses as much as digits as its factorization.

1040615905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959136.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1040615905 is about 32258.5787814652. The cubic root of 1040615905 is about 1013.3593675382.

The spelling of 1040615905 in words is "one billion, forty million, six hundred fifteen thousand, nine hundred five".