68223392 has 12 divisors (see below), whose sum is σ = 134314866. Its totient is φ = 34111680.

The previous prime is 68223371. The next prime is 68223401. The reversal of 68223392 is 29332286.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 21492496 = 6836^2 + 4636^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065959 + ... + 1066022.

Almost surely, 2^68223392 is an apocalyptic number.

It is an amenable number.

68223392 is a deficient number, since it is larger than the sum of its proper divisors (66091474).

68223392 is a wasteful number, since it uses less digits than its factorization.

68223392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131991 (or 2131983 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 68223392 is about 8259.7452745227. The cubic root of 68223392 is about 408.6119868732.

The spelling of 68223392 in words is "sixty-eight million, two hundred twenty-three thousand, three hundred ninety-two".