472211820 has 72 divisors (see below), whose sum is σ = 1462878144. Its totient is φ = 123241728.

The previous prime is 472211791. The next prime is 472211833. The reversal of 472211820 is 28112274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19449 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (20317752).

Almost surely, 2^472211820 is an apocalyptic number.

It is an amenable number.

472211820 is an abundant number, since it is smaller than the sum of its proper divisors (990666324).

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

472211820 is a wasteful number, since it uses less digits than its factorization.

472211820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55879 (or 55874 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 472211820 is about 21730.4353384832. The cubic root of 472211820 is about 778.7157367307.

The spelling of 472211820 in words is "four hundred seventy-two million, two hundred eleven thousand, eight hundred twenty".