478352644 has 24 divisors (see below), whose sum is σ = 1043679168. Its totient is φ = 186371040.

The previous prime is 478352639. The next prime is 478352653. The reversal of 478352644 is 446253874.

It is a self number, because there is not a number n which added to its sum of digits gives 478352644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776239 + ... + 776854.

It is an arithmetic number, because the mean of its divisors is an integer number (43486632).

Almost surely, 2^478352644 is an apocalyptic number.

478352644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

478352644 is an abundant number, since it is smaller than the sum of its proper divisors (565326524).

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

478352644 is a wasteful number, since it uses less digits than its factorization.

478352644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553115 (or 1553113 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The square root of 478352644 is about 21871.2744027411. The cubic root of 478352644 is about 782.0767820335.

The spelling of 478352644 in words is "four hundred seventy-eight million, three hundred fifty-two thousand, six hundred forty-four".