624060640 has 48 divisors (see below), whose sum is σ = 1684966752. Its totient is φ = 213963264.

The previous prime is 624060607. The next prime is 624060653. The reversal of 624060640 is 46060426.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 624060599 and 624060608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277479 + ... + 279718.

It is an arithmetic number, because the mean of its divisors is an integer number (35103474).

Almost surely, 2^624060640 is an apocalyptic number.

It is an amenable number.

624060640 is an abundant number, since it is smaller than the sum of its proper divisors (1060906112).

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

624060640 is a wasteful number, since it uses less digits than its factorization.

624060640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557219 (or 557211 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 624060640 is about 24981.2057355124. The cubic root of 624060640 is about 854.5594164283.

The spelling of 624060640 in words is "six hundred twenty-four million, sixty thousand, six hundred forty".