612338688 has 264 divisors, whose sum is σ = 2011791600. Its totient is φ = 177831936.

The previous prime is 612338663. The next prime is 612338689. The reversal of 612338688 is 886833216.

It is a super-2 number, since 2×612338688² = 749917337643122688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (612338689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2276218 + ... + 2276486.

Almost surely, 2^612338688 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 612338688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005895800).

612338688 is an abundant number, since it is smaller than the sum of its proper divisors (1399452912).

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

612338688 is a wasteful number, since it uses less digits than its factorization.

612338688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 306 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 612338688 is about 24745.4781323780. The cubic root of 612338688 is about 849.1750649323.

The spelling of 612338688 in words is "six hundred twelve million, three hundred thirty-eight thousand, six hundred eighty-eight".