68432900 has 18 divisors (see below), whose sum is σ = 148499610. Its totient is φ = 27373120.

The previous prime is 68432899. The next prime is 68432921. The reversal of 68432900 is 923486.

It can be written as a sum of positive squares in 3 ways, for example, as 23059204 + 45373696 = 4802^2 + 6736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342065 + ... + 342264.

Almost surely, 2^68432900 is an apocalyptic number.

It is an amenable number.

68432900 is an abundant number, since it is smaller than the sum of its proper divisors (80066710).

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

68432900 is a wasteful number, since it uses less digits than its factorization.

68432900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684343 (or 684336 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 68432900 is about 8272.4180261880. The cubic root of 68432900 is about 409.0298298635.

The spelling of 68432900 in words is "sixty-eight million, four hundred thirty-two thousand, nine hundred".