624480 has 48 divisors (see below), whose sum is σ = 1968624. Its totient is φ = 166400.

The previous prime is 624479. The next prime is 624487. The reversal of 624480 is 84426.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 624480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171 + ... + 1130.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2⁶²⁴⁴⁸⁰ is an apocalyptic number.

624480 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 624480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984312).

624480 is an abundant number, since it is smaller than the sum of its proper divisors (1344144).

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

624480 is a wasteful number, since it uses less digits than its factorization.

624480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 624480 is about 790.2404697306. The cubic root of 624480 is about 85.4750790883.

The spelling of 624480 in words is "six hundred twenty-four thousand, four hundred eighty".