68249370 has 32 divisors (see below), whose sum is σ = 187198848. Its totient is φ = 15599808.

The previous prime is 68249351. The next prime is 68249381. The reversal of 68249370 is 7394286.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162289 + ... + 162708.

It is an arithmetic number, because the mean of its divisors is an integer number (5849964).

Almost surely, 2^68249370 is an apocalyptic number.

68249370 is an abundant number, since it is smaller than the sum of its proper divisors (118949478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68249370 is a wasteful number, since it uses less digits than its factorization.

68249370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325014.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 68249370 is about 8261.3176915066. The cubic root of 68249370 is about 408.6638438432.

The spelling of 68249370 in words is "sixty-eight million, two hundred forty-nine thousand, three hundred seventy".