68649250 has 32 divisors (see below), whose sum is σ = 134110080. Its totient is φ = 26263600.

The previous prime is 68649241. The next prime is 68649277. The reversal of 68649250 is 5294686.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220 + ... + 11719.

It is an arithmetic number, because the mean of its divisors is an integer number (4190940).

Almost surely, 2^68649250 is an apocalyptic number.

68649250 is a deficient number, since it is larger than the sum of its proper divisors (65460830).

68649250 is a wasteful number, since it uses less digits than its factorization.

68649250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979 (or 11969 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 68649250 is about 8285.4842948376. The cubic root of 68649250 is about 409.4604244551.

The spelling of 68649250 in words is "sixty-eight million, six hundred forty-nine thousand, two hundred fifty".