68940570 has 16 divisors (see below), whose sum is σ = 165457440. Its totient is φ = 18384144.

The previous prime is 68940551. The next prime is 68940577. The reversal of 68940570 is 7504986.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68940577) 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, 1148980 + ... + 1149039.

It is an arithmetic number, because the mean of its divisors is an integer number (10341090).

Almost surely, 2^68940570 is an apocalyptic number.

68940570 is an abundant number, since it is smaller than the sum of its proper divisors (96516870).

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

68940570 is a wasteful number, since it uses less digits than its factorization.

68940570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298029.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68940570 is about 8303.0458266831. The cubic root of 68940570 is about 410.0388025937.

The spelling of 68940570 in words is "sixty-eight million, nine hundred forty thousand, five hundred seventy".