20698430 has 8 divisors (see below), whose sum is σ = 37257192. Its totient is φ = 8279368.

The previous prime is 20698397. The next prime is 20698453. The reversal of 20698430 is 3489602.

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, 1034912 + ... + 1034931.

It is an arithmetic number, because the mean of its divisors is an integer number (4657149).

Almost surely, 2^20698430 is an apocalyptic number.

20698430 is a deficient number, since it is larger than the sum of its proper divisors (16558762).

20698430 is a wasteful number, since it uses less digits than its factorization.

20698430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069850.

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

The square root of 20698430 is about 4549.5527252687. The cubic root of 20698430 is about 274.5653961683.

The spelling of 20698430 in words is "twenty million, six hundred ninety-eight thousand, four hundred thirty".