613954660 has 96 divisors (see below), whose sum is σ = 1501234560. Its totient is φ = 208435200.

The previous prime is 613954639. The next prime is 613954673. The reversal of 613954660 is 66459316.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519270 + ... + 520450.

It is an arithmetic number, because the mean of its divisors is an integer number (15637860).

Almost surely, 2^613954660 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 613954660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750617280).

613954660 is an abundant number, since it is smaller than the sum of its proper divisors (887279900).

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

613954660 is a wasteful number, since it uses less digits than its factorization.

613954660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 613954660 is about 24778.1084830945. The cubic root of 613954660 is about 849.9214044976.

The spelling of 613954660 in words is "six hundred thirteen million, nine hundred fifty-four thousand, six hundred sixty".