68440250 has 32 divisors (see below), whose sum is σ = 132268032. Its totient is φ = 26490000.

The previous prime is 68440243. The next prime is 68440259. The reversal of 68440250 is 5204486.

It is not an unprimeable number, because it can be changed into a prime (68440259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3335 + ... + 12165.

It is an arithmetic number, because the mean of its divisors is an integer number (4133376).

Almost surely, 2^68440250 is an apocalyptic number.

68440250 is a deficient number, since it is larger than the sum of its proper divisors (63827782).

68440250 is a wasteful number, since it uses less digits than its factorization.

68440250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879 (or 8869 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 68440250 is about 8272.8622616359. The cubic root of 68440250 is about 409.0444732179.

The spelling of 68440250 in words is "sixty-eight million, four hundred forty thousand, two hundred fifty".