624262420244 has 6 divisors (see below), whose sum is σ = 1092459235434. Its totient is φ = 312131210120.

The previous prime is 624262420217. The next prime is 624262420267. The reversal of 624262420244 is 442024262426.

It can be written as a sum of positive squares in only one way, i.e., 619781456644 + 4480963600 = 787262^2 + 66940^2 .

It is a super-2 number, since 2×624262420244² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 624262420198 and 624262420207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78032802527 + ... + 78032802534.

It is an arithmetic number, because the mean of its divisors is an integer number (182076539239).

Almost surely, 2^624262420244 is an apocalyptic number.

It is an amenable number.

624262420244 is a deficient number, since it is larger than the sum of its proper divisors (468196815190).

624262420244 is a wasteful number, since it uses less digits than its factorization.

624262420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156065605065 (or 156065605063 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 624262420244 in words is "six hundred twenty-four billion, two hundred sixty-two million, four hundred twenty thousand, two hundred forty-four".