20292830 has 8 divisors (see below), whose sum is σ = 36527112. Its totient is φ = 8117128.

The previous prime is 20292821. The next prime is 20292841. The reversal of 20292830 is 3829202.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20292830.

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, 1014632 + ... + 1014651.

It is an arithmetic number, because the mean of its divisors is an integer number (4565889).

Almost surely, 2^20292830 is an apocalyptic number.

20292830 is a deficient number, since it is larger than the sum of its proper divisors (16234282).

20292830 is a wasteful number, since it uses less digits than its factorization.

20292830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029290.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20292830 is about 4504.7563752105. The cubic root of 20292830 is about 272.7601197138.

The spelling of 20292830 in words is "twenty million, two hundred ninety-two thousand, eight hundred thirty".