663438060 has 48 divisors (see below), whose sum is σ = 2064031200. Its totient is φ = 176916672.

The previous prime is 663438053. The next prime is 663438091. The reversal of 663438060 is 60834366.

663438060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613755 + ... + 614834.

It is an arithmetic number, because the mean of its divisors is an integer number (43000650).

Almost surely, 2^663438060 is an apocalyptic number.

663438060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

663438060 is an abundant number, since it is smaller than the sum of its proper divisors (1400593140).

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

663438060 is a wasteful number, since it uses less digits than its factorization.

663438060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228607 (or 1228599 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 663438060 is about 25757.2913948653. The cubic root of 663438060 is about 872.1679582062.

The spelling of 663438060 in words is "six hundred sixty-three million, four hundred thirty-eight thousand, sixty".