68943210 has 128 divisors (see below), whose sum is σ = 204871680. Its totient is φ = 14494464.

The previous prime is 68943209. The next prime is 68943223. The reversal of 68943210 is 1234986.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147397 + ... + 147863.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^68943210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68943210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102435840).

68943210 is an abundant number, since it is smaller than the sum of its proper divisors (135928470).

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

68943210 is a wasteful number, since it uses less digits than its factorization.

68943210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 68943210 is about 8303.2048029661. The cubic root of 68943210 is about 410.0440365153.

The spelling of 68943210 in words is "sixty-eight million, nine hundred forty-three thousand, two hundred ten".