68415724 has 24 divisors (see below), whose sum is σ = 130394880. Its totient is φ = 31219584.

The previous prime is 68415679. The next prime is 68415761. The reversal of 68415724 is 42751486.

It is a super-2 number, since 2×68415724² = 9361422580888352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^68415724 is an apocalyptic number.

It is an amenable number.

68415724 is a deficient number, since it is larger than the sum of its proper divisors (61979156).

68415724 is a wasteful number, since it uses less digits than its factorization.

68415724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889 (or 14887 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 68415724 is about 8271.3798123409. The cubic root of 68415724 is about 408.9956061484.

The spelling of 68415724 in words is "sixty-eight million, four hundred fifteen thousand, seven hundred twenty-four".