624819942 has 48 divisors (see below), whose sum is σ = 1403206272. Its totient is φ = 200724480.

The previous prime is 624819919. The next prime is 624819953. The reversal of 624819942 is 249918426.

624819942 is a `hidden beast` number, since 624 + 8 + 19 + 9 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141228 + ... + 145584.

It is an arithmetic number, because the mean of its divisors is an integer number (29233464).

Almost surely, 2^624819942 is an apocalyptic number.

624819942 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 624819942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701603136).

624819942 is an abundant number, since it is smaller than the sum of its proper divisors (778386330).

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

624819942 is a wasteful number, since it uses less digits than its factorization.

624819942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653 (or 4650 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 624819942 is about 24996.3985805956. The cubic root of 624819942 is about 854.9058601594.

The spelling of 624819942 in words is "six hundred twenty-four million, eight hundred nineteen thousand, nine hundred forty-two".