400347343407 has 16 divisors (see below), whose sum is σ = 582739718400. Its totient is φ = 242461291200.

The previous prime is 400347343343. The next prime is 400347343453. The reversal of 400347343407 is 704343743004.

It is not a de Polignac number, because 400347343407 - 2⁶ = 400347343343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400347343457) 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 15 ways as a sum of consecutive naturals, for example, 4289694 + ... + 4382027.

It is an arithmetic number, because the mean of its divisors is an integer number (36421232400).

Almost surely, 2^400347343407 is an apocalyptic number.

400347343407 is a deficient number, since it is larger than the sum of its proper divisors (182392374993).

400347343407 is a wasteful number, since it uses less digits than its factorization.

400347343407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8673134.

The product of its (nonzero) digits is 338688, while the sum is 39.

The spelling of 400347343407 in words is "four hundred billion, three hundred forty-seven million, three hundred forty-three thousand, four hundred seven".