662123280 has 480 divisors, whose sum is σ = 2650330368. Its totient is φ = 135475200.

The previous prime is 662123257. The next prime is 662123299. The reversal of 662123280 is 82321266.

662123280 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 (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9325645 + ... + 9325715.

Almost surely, 2^662123280 is an apocalyptic number.

662123280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662123280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325165184).

662123280 is an abundant number, since it is smaller than the sum of its proper divisors (1988207088).

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

662123280 is a wasteful number, since it uses less digits than its factorization.

662123280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 662123280 is about 25731.7562556464. The cubic root of 662123280 is about 871.5914324806.

The spelling of 662123280 in words is "six hundred sixty-two million, one hundred twenty-three thousand, two hundred eighty".