68402910 has 16 divisors (see below), whose sum is σ = 164167056. Its totient is φ = 18240768.

The previous prime is 68402903. The next prime is 68402921. The reversal of 68402910 is 1920486.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2280097 = 68402910 / (6 + 8 + 4 + 0 + 2 + 9 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140019 + ... + 1140078.

It is an arithmetic number, because the mean of its divisors is an integer number (10260441).

Almost surely, 2^68402910 is an apocalyptic number.

68402910 is an abundant number, since it is smaller than the sum of its proper divisors (95764146).

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

68402910 is a wasteful number, since it uses less digits than its factorization.

68402910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280107.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68402910 is about 8270.6051773737. The cubic root of 68402910 is about 408.9700701233.

The spelling of 68402910 in words is "sixty-eight million, four hundred two thousand, nine hundred ten".