400505484426 has 16 divisors (see below), whose sum is σ = 805036152000. Its totient is φ = 132830964288.

The previous prime is 400505484377. The next prime is 400505484433. The reversal of 400505484426 is 624484505004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167714671 + ... + 167717058.

It is an arithmetic number, because the mean of its divisors is an integer number (50314759500).

Almost surely, 2^400505484426 is an apocalyptic number.

400505484426 is an abundant number, since it is smaller than the sum of its proper divisors (404530667574).

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

400505484426 is a wasteful number, since it uses less digits than its factorization.

400505484426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335431933.

The product of its (nonzero) digits is 614400, while the sum is 42.

The spelling of 400505484426 in words is "four hundred billion, five hundred five million, four hundred eighty-four thousand, four hundred twenty-six".