472621656 has 128 divisors (see below), whose sum is σ = 1362412800. Its totient is φ = 135406080.

The previous prime is 472621651. The next prime is 472621661. The reversal of 472621656 is 656126274.

It is an interprime number because it is at equal distance from previous prime (472621651) and next prime (472621661).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472621651) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 360955 + ... + 362261.

It is an arithmetic number, because the mean of its divisors is an integer number (10643850).

Almost surely, 2^472621656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472621656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681206400).

472621656 is an abundant number, since it is smaller than the sum of its proper divisors (889791144).

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

472621656 is a wasteful number, since it uses less digits than its factorization.

472621656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1405 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 472621656 is about 21739.8632930384. The cubic root of 472621656 is about 778.9409558973.

The spelling of 472621656 in words is "four hundred seventy-two million, six hundred twenty-one thousand, six hundred fifty-six".