400535133 has 16 divisors (see below), whose sum is σ = 562484736. Its totient is φ = 253022000.

The previous prime is 400535131. The next prime is 400535137. The reversal of 400535133 is 331535004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 400535133 - 2¹ = 400535131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400535131) 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, 19743 + ... + 34508.

It is an arithmetic number, because the mean of its divisors is an integer number (35155296).

Almost surely, 2^400535133 is an apocalyptic number.

It is an amenable number.

400535133 is a deficient number, since it is larger than the sum of its proper divisors (161949603).

400535133 is a wasteful number, since it uses less digits than its factorization.

400535133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54384.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 400535133 is about 20013.3738535011. The cubic root of 400535133 is about 737.1347277823.

The spelling of 400535133 in words is "four hundred million, five hundred thirty-five thousand, one hundred thirty-three".