400398152834 has 8 divisors (see below), whose sum is σ = 600753361728. Its totient is φ = 200147032260.

The previous prime is 400398152773. The next prime is 400398152849. The reversal of 400398152834 is 438251893004.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26012462 + ... + 26027849.

It is an arithmetic number, because the mean of its divisors is an integer number (75094170216).

Almost surely, 2^400398152834 is an apocalyptic number.

400398152834 is a deficient number, since it is larger than the sum of its proper divisors (200355208894).

400398152834 is a wasteful number, since it uses less digits than its factorization.

400398152834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52044160.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 400398152834 in words is "four hundred billion, three hundred ninety-eight million, one hundred fifty-two thousand, eight hundred thirty-four".