400475341220 has 24 divisors (see below), whose sum is σ = 842274417600. Its totient is φ = 159947050592.

The previous prime is 400475341219. The next prime is 400475341223. The reversal of 400475341220 is 22143574004.

It is not an unprimeable number, because it can be changed into a prime (400475341223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15179360 + ... + 15205719.

It is an arithmetic number, because the mean of its divisors is an integer number (35094767400).

Almost surely, 2^400475341220 is an apocalyptic number.

It is an amenable number.

400475341220 is an abundant number, since it is smaller than the sum of its proper divisors (441799076380).

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

400475341220 is a wasteful number, since it uses less digits than its factorization.

400475341220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30385747 (or 30385745 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 400475341220 in words is "four hundred billion, four hundred seventy-five million, three hundred forty-one thousand, two hundred twenty".