400669413 has 16 divisors (see below), whose sum is σ = 575242560. Its totient is φ = 247137536.

The previous prime is 400669393. The next prime is 400669417. The reversal of 400669413 is 314966004.

It is a cyclic number.

It is not a de Polignac number, because 400669413 - 2⁶ = 400669349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400669417) 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, 63570 + ... + 69587.

It is an arithmetic number, because the mean of its divisors is an integer number (35952660).

Almost surely, 2^400669413 is an apocalyptic number.

It is an amenable number.

400669413 is a deficient number, since it is larger than the sum of its proper divisors (174573147).

400669413 is a wasteful number, since it uses less digits than its factorization.

400669413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133236.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 400669413 is about 20016.7283290752. The cubic root of 400669413 is about 737.2170937504.

The spelling of 400669413 in words is "four hundred million, six hundred sixty-nine thousand, four hundred thirteen".