400352045045 has 32 divisors (see below), whose sum is σ = 490515056640. Its totient is φ = 313632458560.

The previous prime is 400352045039. The next prime is 400352045053. The reversal of 400352045045 is 540540253004.

It is not a de Polignac number, because 400352045045 - 2²⁸ = 400083609589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24872450 + ... + 24888540.

It is an arithmetic number, because the mean of its divisors is an integer number (15328595520).

Almost surely, 2^400352045045 is an apocalyptic number.

It is an amenable number.

400352045045 is a deficient number, since it is larger than the sum of its proper divisors (90163011595).

400352045045 is a wasteful number, since it uses less digits than its factorization.

400352045045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16705.

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 400352045045 its reverse (540540253004), we get a palindrome (940892298049).

The spelling of 400352045045 in words is "four hundred billion, three hundred fifty-two million, forty-five thousand, forty-five".