56394660 has 192 divisors, whose sum is σ = 196116480. Its totient is φ = 11819520.

The previous prime is 56394659. The next prime is 56394691. The reversal of 56394660 is 6649365.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 295165 + ... + 295355.

It is an arithmetic number, because the mean of its divisors is an integer number (1021440).

Almost surely, 2^56394660 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 56394660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98058240).

56394660 is an abundant number, since it is smaller than the sum of its proper divisors (139721820).

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

56394660 is a wasteful number, since it uses less digits than its factorization.

56394660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 56394660 is about 7509.6378075111. The cubic root of 56394660 is about 383.4828922820.

It can be divided in two parts, 56 and 394660, that added together give a triangular number (394716 = T₈₈₈).

The spelling of 56394660 in words is "fifty-six million, three hundred ninety-four thousand, six hundred sixty".