400346425554 has 32 divisors (see below), whose sum is σ = 804087000000. Its totient is φ = 132884312064.

The previous prime is 400346425537. The next prime is 400346425643. The reversal of 400346425554 is 455524643004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195402 + ... + 1493210.

It is an arithmetic number, because the mean of its divisors is an integer number (25127718750).

Almost surely, 2^400346425554 is an apocalyptic number.

400346425554 is an abundant number, since it is smaller than the sum of its proper divisors (403740574446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400346425554 is a wasteful number, since it uses less digits than its factorization.

400346425554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298762.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 400346425554 in words is "four hundred billion, three hundred forty-six million, four hundred twenty-five thousand, five hundred fifty-four".