400004074008 has 128 divisors (see below), whose sum is σ = 1385295552000. Its totient is φ = 103897157760.

The previous prime is 400004073977. The next prime is 400004074009. The reversal of 400004074008 is 800470400004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400004074009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12008503 + ... + 12041766.

It is an arithmetic number, because the mean of its divisors is an integer number (10822621500).

Almost surely, 2^400004074008 is an apocalyptic number.

It is an amenable number.

400004074008 is an abundant number, since it is smaller than the sum of its proper divisors (985291477992).

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

400004074008 is a wasteful number, since it uses less digits than its factorization.

400004074008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050302 (or 24050292 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The spelling of 400004074008 in words is "four hundred billion, four million, seventy-four thousand, eight".