1040045655 has 32 divisors (see below), whose sum is σ = 1910903040. Its totient is φ = 477722880.

The previous prime is 1040045651. The next prime is 1040045663. The reversal of 1040045655 is 5565400401.

It is not a de Polignac number, because 1040045655 - 2² = 1040045651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040045651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162742 + ... + 169011.

It is an arithmetic number, because the mean of its divisors is an integer number (59715720).

Almost surely, 2^1040045655 is an apocalyptic number.

1040045655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1040045655 is a deficient number, since it is larger than the sum of its proper divisors (870857385).

1040045655 is a wasteful number, since it uses less digits than its factorization.

1040045655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331791.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1040045655 is about 32249.7388361518. The cubic root of 1040045655 is about 1013.1742291778.

The spelling of 1040045655 in words is "one billion, forty million, forty-five thousand, six hundred fifty-five".