623480 has 64 divisors (see below), whose sum is σ = 1663200. Its totient is φ = 207360.

The previous prime is 623477. The next prime is 623521. The reversal of 623480 is 84326.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 5666 + ... + 5774.

2⁶²³⁴⁸⁰ 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 623480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831600).

623480 is an abundant number, since it is smaller than the sum of its proper divisors (1039720).

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

623480 is a wasteful number, since it uses less digits than its factorization.

623480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 623480 is about 789.6074974315. The cubic root of 623480 is about 85.4294300446.

The spelling of 623480 in words is "six hundred twenty-three thousand, four hundred eighty".