68408249 has 8 divisors (see below), whose sum is σ = 84194880. Its totient is φ = 54125136.

The previous prime is 68408243. The next prime is 68408257. The reversal of 68408249 is 94280486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68408249 - 2⁸ = 68407993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68408243) 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, 375779 + ... + 375960.

It is an arithmetic number, because the mean of its divisors is an integer number (10524360).

Almost surely, 2^68408249 is an apocalyptic number.

It is an amenable number.

68408249 is a deficient number, since it is larger than the sum of its proper divisors (15786631).

68408249 is a wasteful number, since it uses less digits than its factorization.

68408249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751759.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 68408249 is about 8270.9279406848. The cubic root of 68408249 is about 408.9807101891.

The spelling of 68408249 in words is "sixty-eight million, four hundred eight thousand, two hundred forty-nine".