612688944 has 120 divisors (see below), whose sum is σ = 1849101888. Its totient is φ = 174303360.

The previous prime is 612688939. The next prime is 612688963. The reversal of 612688944 is 449886216.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 612688893 and 612688902.

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, 778119 + ... + 778905.

Almost surely, 2^612688944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612688944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924550944).

612688944 is an abundant number, since it is smaller than the sum of its proper divisors (1236412944).

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

612688944 is a wasteful number, since it uses less digits than its factorization.

612688944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1130 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 612688944 is about 24752.5542924362. The cubic root of 612688944 is about 849.3369426513.

The spelling of 612688944 in words is "six hundred twelve million, six hundred eighty-eight thousand, nine hundred forty-four".