68660460 has 120 divisors (see below), whose sum is σ = 235032336. Its totient is φ = 16640640.

The previous prime is 68660453. The next prime is 68660477. The reversal of 68660460 is 6406686.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15894 + ... + 19746.

Almost surely, 2^68660460 is an apocalyptic number.

68660460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68660460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117516168).

68660460 is an abundant number, since it is smaller than the sum of its proper divisors (166371876).

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

68660460 is a wasteful number, since it uses less digits than its factorization.

68660460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68660460 is about 8286.1607515182. The cubic root of 68660460 is about 409.4827106978.

The spelling of 68660460 in words is "sixty-eight million, six hundred sixty thousand, four hundred sixty".