68940258 has 32 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 22328400.

The previous prime is 68940257. The next prime is 68940271. The reversal of 68940258 is 85204986.

It is not an unprimeable number, because it can be changed into a prime (68940257) 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, 41773 + ... + 43391.

It is an arithmetic number, because the mean of its divisors is an integer number (4432320).

Almost surely, 2^68940258 is an apocalyptic number.

68940258 is an abundant number, since it is smaller than the sum of its proper divisors (72893982).

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

68940258 is a wasteful number, since it uses less digits than its factorization.

68940258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 68940258 is about 8303.0270383758. The cubic root of 68940258 is about 410.0381840305.

The spelling of 68940258 in words is "sixty-eight million, nine hundred forty thousand, two hundred fifty-eight".