68209430 has 32 divisors (see below), whose sum is σ = 130606560. Its totient is φ = 25574400.

The previous prime is 68209343. The next prime is 68209433. The reversal of 68209430 is 3490286.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68209433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16580 + ... + 20280.

It is an arithmetic number, because the mean of its divisors is an integer number (4081455).

Almost surely, 2^68209430 is an apocalyptic number.

68209430 is a deficient number, since it is larger than the sum of its proper divisors (62397130).

68209430 is a wasteful number, since it uses less digits than its factorization.

68209430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824.

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

The square root of 68209430 is about 8258.9000478272. The cubic root of 68209430 is about 408.5841106585.

The spelling of 68209430 in words is "sixty-eight million, two hundred nine thousand, four hundred thirty".