479021780 has 12 divisors (see below), whose sum is σ = 1005945780. Its totient is φ = 191608704.

The previous prime is 479021779. The next prime is 479021789. The reversal of 479021780 is 87120974.

It can be written as a sum of positive squares in 2 ways, for example, as 202265284 + 276756496 = 14222^2 + 16636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479021789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11975525 + ... + 11975564.

It is an arithmetic number, because the mean of its divisors is an integer number (83828815).

Almost surely, 2^479021780 is an apocalyptic number.

It is an amenable number.

479021780 is an abundant number, since it is smaller than the sum of its proper divisors (526924000).

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

479021780 is a wasteful number, since it uses less digits than its factorization.

479021780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23951098 (or 23951096 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 479021780 is about 21886.5661993836. The cubic root of 479021780 is about 782.4412773593.

The spelling of 479021780 in words is "four hundred seventy-nine million, twenty-one thousand, seven hundred eighty".