68406488 has 32 divisors (see below), whose sum is σ = 133995600. Its totient is φ = 32706432.

The previous prime is 68406467. The next prime is 68406493. The reversal of 68406488 is 88460486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506 + ... + 19422.

Almost surely, 2^68406488 is an apocalyptic number.

It is an amenable number.

68406488 is a deficient number, since it is larger than the sum of its proper divisors (65589112).

68406488 is a wasteful number, since it uses less digits than its factorization.

68406488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The square root of 68406488 is about 8270.8214827791. The cubic root of 68406488 is about 408.9772007624.

The spelling of 68406488 in words is "sixty-eight million, four hundred six thousand, four hundred eighty-eight".