662815488 has 54 divisors (see below), whose sum is σ = 1765956724. Its totient is φ = 220700672.

The previous prime is 662815487. The next prime is 662815501. The reversal of 662815488 is 884518266.

It is a happy number.

It is a super-2 number, since 2×662815488² = 878648742265356288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (662815487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713008 + ... + 713936.

Almost surely, 2^662815488 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 662815488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882978362).

662815488 is an abundant number, since it is smaller than the sum of its proper divisors (1103141236).

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

662815488 is an frugal number, since it uses more digits than its factorization.

662815488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877 (or 934 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 662815488 is about 25745.2032037038. The cubic root of 662815488 is about 871.8950579319.

Multiplying 662815488 by its sum of digits (48), we get a square (31815143424 = 178368²).

662815488 divided by its sum of digits (48) gives a square (13808656 = 3716²).

The spelling of 662815488 in words is "six hundred sixty-two million, eight hundred fifteen thousand, four hundred eighty-eight".