624342040 has 32 divisors (see below), whose sum is σ = 1605451680. Its totient is φ = 214060032.

The previous prime is 624342029. The next prime is 624342041. The reversal of 624342040 is 40243426.

It is a super-2 number, since 2×624342040² = 779605965822723200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 624341996 and 624342014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624342041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114617 + ... + 1115176.

It is an arithmetic number, because the mean of its divisors is an integer number (50170365).

Almost surely, 2^624342040 is an apocalyptic number.

It is an amenable number.

624342040 is an abundant number, since it is smaller than the sum of its proper divisors (981109640).

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

624342040 is a wasteful number, since it uses less digits than its factorization.

624342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229811 (or 2229807 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 624342040 is about 24986.8373348849. The cubic root of 624342040 is about 854.6878424545.

Adding to 624342040 its reverse (40243426), we get a palindrome (664585466).

The spelling of 624342040 in words is "six hundred twenty-four million, three hundred forty-two thousand, forty".