623285280 has 576 divisors, whose sum is σ = 2496469248. Its totient is φ = 145981440.

The previous prime is 623285279. The next prime is 623285309. The reversal of 623285280 is 82582326.

623285280 is a `hidden beast` number, since 623 + 2 + 8 + 5 + 28 + 0 = 666.

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

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, 15202060 + ... + 15202100.

It is an arithmetic number, because the mean of its divisors is an integer number (4334148).

Almost surely, 2^623285280 is an apocalyptic number.

623285280 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 623285280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248234624).

623285280 is an abundant number, since it is smaller than the sum of its proper divisors (1873183968).

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

623285280 is a wasteful number, since it uses less digits than its factorization.

623285280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 623285280 is about 24965.6820455601. The cubic root of 623285280 is about 854.2053558627.

The spelling of 623285280 in words is "six hundred twenty-three million, two hundred eighty-five thousand, two hundred eighty".