68660732 has 24 divisors (see below), whose sum is σ = 140673120. Its totient is φ = 28707840.

The previous prime is 68660731. The next prime is 68660743. The reversal of 68660732 is 23706686.

It is a super-2 number, since 2×68660732² = 9428592237551648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68660731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28757 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (5861380).

Almost surely, 2^68660732 is an apocalyptic number.

It is an amenable number.

68660732 is an abundant number, since it is smaller than the sum of its proper divisors (72012388).

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

68660732 is a wasteful number, since it uses less digits than its factorization.

68660732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59861 (or 59859 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 68660732 is about 8286.1771644106. The cubic root of 68660732 is about 409.4832514222.

The spelling of 68660732 in words is "sixty-eight million, six hundred sixty thousand, seven hundred thirty-two".