400204140506 has 16 divisors (see below), whose sum is σ = 631949909184. Its totient is φ = 189708154944.

The previous prime is 400204140499. The next prime is 400204140569. The reversal of 400204140506 is 605041402004.

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, 38490776 + ... + 38501171.

It is an arithmetic number, because the mean of its divisors is an integer number (39496869324).

Almost surely, 2^400204140506 is an apocalyptic number.

400204140506 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

400204140506 is a deficient number, since it is larger than the sum of its proper divisors (231745768678).

400204140506 is a wasteful number, since it uses less digits than its factorization.

400204140506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76992085.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 400204140506 in words is "four hundred billion, two hundred four million, one hundred forty thousand, five hundred six".