400535513 has 16 divisors (see below), whose sum is σ = 462658944. Its totient is φ = 339655680.

The previous prime is 400535467. The next prime is 400535537. The reversal of 400535513 is 315535004.

It is not a de Polignac number, because 400535513 - 2⁶ = 400535449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400535813) 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, 528731 + ... + 529487.

It is an arithmetic number, because the mean of its divisors is an integer number (28916184).

Almost surely, 2^400535513 is an apocalyptic number.

It is an amenable number.

400535513 is a deficient number, since it is larger than the sum of its proper divisors (62123431).

400535513 is a wasteful number, since it uses less digits than its factorization.

400535513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 400535513 is about 20013.3833471505. The cubic root of 400535513 is about 737.1349608964.

The spelling of 400535513 in words is "four hundred million, five hundred thirty-five thousand, five hundred thirteen".