20193430 has 8 divisors (see below), whose sum is σ = 36348192. Its totient is φ = 8077368.

The previous prime is 20193421. The next prime is 20193451. The reversal of 20193430 is 3439102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 1009662 + ... + 1009681.

It is an arithmetic number, because the mean of its divisors is an integer number (4543524).

Almost surely, 2^20193430 is an apocalyptic number.

20193430 is a deficient number, since it is larger than the sum of its proper divisors (16154762).

20193430 is a wasteful number, since it uses less digits than its factorization.

20193430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019350.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20193430 is about 4493.7100485011. The cubic root of 20193430 is about 272.3140385980.

The spelling of 20193430 in words is "twenty million, one hundred ninety-three thousand, four hundred thirty".