400535613 has 12 divisors (see below), whose sum is σ = 578728800. Its totient is φ = 266941896.

The previous prime is 400535549. The next prime is 400535633. The reversal of 400535613 is 316535004.

400535613 is a `hidden beast` number, since 40 + 0 + 5 + 3 + 5 + 613 = 666.

It is not a de Polignac number, because 400535613 - 2⁶ = 400535549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400535633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44470 + ... + 52712.

It is an arithmetic number, because the mean of its divisors is an integer number (48227400).

Almost surely, 2^400535613 is an apocalyptic number.

It is an amenable number.

400535613 is a deficient number, since it is larger than the sum of its proper divisors (178193187).

400535613 is a wasteful number, since it uses less digits than its factorization.

400535613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13648 (or 13645 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 400535613 is about 20013.3858454785. The cubic root of 400535613 is about 737.1350222422.

The spelling of 400535613 in words is "four hundred million, five hundred thirty-five thousand, six hundred thirteen".