68309132 has 12 divisors (see below), whose sum is σ = 119904456. Its totient is φ = 34050720.

The previous prime is 68309071. The next prime is 68309173. The reversal of 68309132 is 23190386.

It is a super-2 number, since 2×68309132² = 9332275029186848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24473 + ... + 27120.

It is an arithmetic number, because the mean of its divisors is an integer number (9992038).

Almost surely, 2^68309132 is an apocalyptic number.

It is an amenable number.

68309132 is a deficient number, since it is larger than the sum of its proper divisors (51595324).

68309132 is a wasteful number, since it uses less digits than its factorization.

68309132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51928 (or 51926 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 68309132 is about 8264.9338775334. The cubic root of 68309132 is about 408.7830900899.

The spelling of 68309132 in words is "sixty-eight million, three hundred nine thousand, one hundred thirty-two".