400942492959 has 16 divisors (see below), whose sum is σ = 572396427360. Its totient is φ = 248745108480.

The previous prime is 400942492919. The next prime is 400942492961. The reversal of 400942492959 is 959294249004.

It is not a de Polignac number, because 400942492959 - 2¹⁶ = 400942427423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400942492899 and 400942492908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400942492919) 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, 44161852 + ... + 44170929.

It is an arithmetic number, because the mean of its divisors is an integer number (35774776710).

Almost surely, 2^400942492959 is an apocalyptic number.

400942492959 is a deficient number, since it is larger than the sum of its proper divisors (171453934401).

400942492959 is a wasteful number, since it uses less digits than its factorization.

400942492959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88332890.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 400942492959 in words is "four hundred billion, nine hundred forty-two million, four hundred ninety-two thousand, nine hundred fifty-nine".