400004000407 has 8 divisors (see below), whose sum is σ = 437404509072. Its totient is φ = 362776243200.

The previous prime is 400004000353. The next prime is 400004000441. The reversal of 400004000407 is 704000400004.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400004000407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400004000477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43183018 + ... + 43192279.

It is an arithmetic number, because the mean of its divisors is an integer number (54675563634).

Almost surely, 2^400004000407 is an apocalyptic number.

400004000407 is a deficient number, since it is larger than the sum of its proper divisors (37400508665).

400004000407 is a wasteful number, since it uses less digits than its factorization.

400004000407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86375729.

The product of its (nonzero) digits is 448, while the sum is 19.

The spelling of 400004000407 in words is "four hundred billion, four million, four hundred seven", and thus it is an aban number.