624239998 has 8 divisors (see below), whose sum is σ = 939741192. Its totient is φ = 310992936.

The previous prime is 624239981. The next prime is 624239999. The reversal of 624239998 is 899932426.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (624239999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562840 + ... + 563947.

It is an arithmetic number, because the mean of its divisors is an integer number (117467649).

Almost surely, 2^624239998 is an apocalyptic number.

624239998 is a deficient number, since it is larger than the sum of its proper divisors (315501194).

624239998 is a wasteful number, since it uses less digits than its factorization.

624239998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127066.

The product of its digits is 1679616, while the sum is 52.

The square root of 624239998 is about 24984.7953363641. The cubic root of 624239998 is about 854.6412767351.

The spelling of 624239998 in words is "six hundred twenty-four million, two hundred thirty-nine thousand, nine hundred ninety-eight".