613881632 has 48 divisors (see below), whose sum is σ = 1487489472. Its totient is φ = 242853120.

The previous prime is 613881629. The next prime is 613881641. The reversal of 613881632 is 236188316.

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, 102494 + ... + 108317.

It is an arithmetic number, because the mean of its divisors is an integer number (30989364).

Almost surely, 2^613881632 is an apocalyptic number.

It is an amenable number.

613881632 is an abundant number, since it is smaller than the sum of its proper divisors (873607840).

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

613881632 is a wasteful number, since it uses less digits than its factorization.

613881632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210841 (or 210833 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 613881632 is about 24776.6347997463. The cubic root of 613881632 is about 849.8877046576.

The spelling of 613881632 in words is "six hundred thirteen million, eight hundred eighty-one thousand, six hundred thirty-two".