624740442 has 8 divisors (see below), whose sum is σ = 1249480896. Its totient is φ = 208246812.

The previous prime is 624740437. The next prime is 624740443. The reversal of 624740442 is 244047426.

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

624740442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (624740443) 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, 52061698 + ... + 52061709.

It is an arithmetic number, because the mean of its divisors is an integer number (156185112).

Almost surely, 2^624740442 is an apocalyptic number.

624740442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

624740442 is a wasteful number, since it uses less digits than its factorization.

624740442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104123412.

The product of its (nonzero) digits is 43008, while the sum is 33.

The square root of 624740442 is about 24994.8083009252. The cubic root of 624740442 is about 854.8696001672.

Adding to 624740442 its reverse (244047426), we get a palindrome (868787868).

The spelling of 624740442 in words is "six hundred twenty-four million, seven hundred forty thousand, four hundred forty-two".