400134835839 has 8 divisors (see below), whose sum is σ = 534072943152. Its totient is φ = 266476642880.

The previous prime is 400134835829. The next prime is 400134835861. The reversal of 400134835839 is 938538431004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400134835839 - 2⁹ = 400134835327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400134835829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69975252 + ... + 69980969.

It is an arithmetic number, because the mean of its divisors is an integer number (66759117894).

Almost surely, 2^400134835839 is an apocalyptic number.

400134835839 is a deficient number, since it is larger than the sum of its proper divisors (133938107313).

400134835839 is a wasteful number, since it uses less digits than its factorization.

400134835839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139957177.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 400134835839 in words is "four hundred billion, one hundred thirty-four million, eight hundred thirty-five thousand, eight hundred thirty-nine".