20830430 has 16 divisors (see below), whose sum is σ = 37666944. Its totient is φ = 8293920.

The previous prime is 20830429. The next prime is 20830471. The reversal of 20830430 is 3403802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (2354184).

Almost surely, 2^20830430 is an apocalyptic number.

20830430 is a deficient number, since it is larger than the sum of its proper divisors (16836514).

20830430 is a wasteful number, since it uses less digits than its factorization.

20830430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20830430 is about 4564.0365905632. The cubic root of 20830430 is about 275.1478213535.

The spelling of 20830430 in words is "twenty million, eight hundred thirty thousand, four hundred thirty".