478622844 has 240 divisors, whose sum is σ = 1561190400. Its totient is φ = 124758144.

The previous prime is 478622827. The next prime is 478622869. The reversal of 478622844 is 448226874.

It is a self number, because there is not a number n which added to its sum of digits gives 478622844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1249477 + ... + 1249859.

It is an arithmetic number, because the mean of its divisors is an integer number (6504960).

Almost surely, 2^478622844 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 478622844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780595200).

478622844 is an abundant number, since it is smaller than the sum of its proper divisors (1082567556).

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

478622844 is a wasteful number, since it uses less digits than its factorization.

478622844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 443 counting only the distinct ones).

The product of its digits is 688128, while the sum is 45.

The square root of 478622844 is about 21877.4505827347. The cubic root of 478622844 is about 782.2240077074.

The spelling of 478622844 in words is "four hundred seventy-eight million, six hundred twenty-two thousand, eight hundred forty-four".