624994240 has 56 divisors (see below), whose sum is σ = 1602760320. Its totient is φ = 230765568.

The previous prime is 624994219. The next prime is 624994243. The reversal of 624994240 is 42499426.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 624994193 and 624994202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624994243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70960 + ... + 79279.

It is an arithmetic number, because the mean of its divisors is an integer number (28620720).

Almost surely, 2^624994240 is an apocalyptic number.

It is an amenable number.

624994240 is an abundant number, since it is smaller than the sum of its proper divisors (977766080).

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

624994240 is a wasteful number, since it uses less digits than its factorization.

624994240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150269 (or 150259 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 624994240 is about 24999.8847997346. The cubic root of 624994240 is about 854.9853468072.

It can be divided in two parts, 6249 and 94240, that added together give a square (100489 = 317²).

The spelling of 624994240 in words is "six hundred twenty-four million, nine hundred ninety-four thousand, two hundred forty".