406622624220 has 72 divisors (see below), whose sum is σ = 1233733344480. Its totient is φ = 108405325440.

The previous prime is 406622624183. The next prime is 406622624227. The reversal of 406622624220 is 22426226604.

406622624220 is a `hidden beast` number, since 4 + 0 + 6 + 6 + 2 + 2 + 624 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406622624227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434865 + ... + 1001175.

It is an arithmetic number, because the mean of its divisors is an integer number (17135185340).

Almost surely, 2^406622624220 is an apocalyptic number.

It is an amenable number.

406622624220 is an abundant number, since it is smaller than the sum of its proper divisors (827110720260).

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

406622624220 is a wasteful number, since it uses less digits than its factorization.

406622624220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570315 (or 570310 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 406622624220 in words is "four hundred six billion, six hundred twenty-two million, six hundred twenty-four thousand, two hundred twenty".