624140298 has 48 divisors (see below), whose sum is σ = 1398698496. Its totient is φ = 200936160.

The previous prime is 624140287. The next prime is 624140299. The reversal of 624140298 is 892041426.

624140298 is a `hidden beast` number, since 6 + 241 + 402 + 9 + 8 = 666.

It is a super-2 number, since 2×624140298² = 779102223175057608, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (624140299) 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 23 ways as a sum of consecutive naturals, for example, 430611 + ... + 432057.

It is an arithmetic number, because the mean of its divisors is an integer number (29139552).

Almost surely, 2^624140298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 624140298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699349248).

624140298 is an abundant number, since it is smaller than the sum of its proper divisors (774558198).

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

624140298 is a wasteful number, since it uses less digits than its factorization.

624140298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 624140298 is about 24982.8000432297. The cubic root of 624140298 is about 854.5957748596.

The spelling of 624140298 in words is "six hundred twenty-four million, one hundred forty thousand, two hundred ninety-eight".