400040707407 has 32 divisors (see below), whose sum is σ = 607732796160. Its totient is φ = 231897957120.

The previous prime is 400040707403. The next prime is 400040707421. The reversal of 400040707407 is 704707040004.

It is not a de Polignac number, because 400040707407 - 2² = 400040707403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400040707403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2704518 + ... + 2848595.

It is an arithmetic number, because the mean of its divisors is an integer number (18991649880).

Almost surely, 2^400040707407 is an apocalyptic number.

400040707407 is a deficient number, since it is larger than the sum of its proper divisors (207692088753).

400040707407 is a wasteful number, since it uses less digits than its factorization.

400040707407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553223.

The product of its (nonzero) digits is 21952, while the sum is 33.

The spelling of 400040707407 in words is "four hundred billion, forty million, seven hundred seven thousand, four hundred seven".