68440588 has 6 divisors (see below), whose sum is σ = 119771036. Its totient is φ = 34220292.

The previous prime is 68440579. The next prime is 68440627. The reversal of 68440588 is 88504486.

It is a super-2 number, since 2×68440588² = 9368228171571488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8555070 + ... + 8555077.

Almost surely, 2^68440588 is an apocalyptic number.

It is an amenable number.

68440588 is a deficient number, since it is larger than the sum of its proper divisors (51330448).

68440588 is a wasteful number, since it uses less digits than its factorization.

68440588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17110151 (or 17110149 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 68440588 is about 8272.8826898488. The cubic root of 68440588 is about 409.0451465877.

The spelling of 68440588 in words is "sixty-eight million, four hundred forty thousand, five hundred eighty-eight".