68418724 has 48 divisors (see below), whose sum is σ = 134289792. Its totient is φ = 30492000.

The previous prime is 68418703. The next prime is 68418773. The reversal of 68418724 is 42781486.

It is a super-2 number, since 2×68418724² = 9362243587576352, 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 15 ways as a sum of consecutive naturals, for example, 377914 + ... + 378094.

It is an arithmetic number, because the mean of its divisors is an integer number (2797704).

Almost surely, 2^68418724 is an apocalyptic number.

It is an amenable number.

68418724 is a deficient number, since it is larger than the sum of its proper divisors (65871068).

68418724 is a wasteful number, since it uses less digits than its factorization.

68418724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 265 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 68418724 is about 8271.5611585722. The cubic root of 68418724 is about 409.0015841546.

The spelling of 68418724 in words is "sixty-eight million, four hundred eighteen thousand, seven hundred twenty-four".