20264430 has 16 divisors (see below), whose sum is σ = 48634704. Its totient is φ = 5403840.

The previous prime is 20264401. The next prime is 20264437. The reversal of 20264430 is 3446202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20264397 and 20264406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337711 + ... + 337770.

It is an arithmetic number, because the mean of its divisors is an integer number (3039669).

Almost surely, 2^20264430 is an apocalyptic number.

20264430 is an abundant number, since it is smaller than the sum of its proper divisors (28370274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20264430 is a wasteful number, since it uses less digits than its factorization.

20264430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675491.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20264430 is about 4501.6030478042. The cubic root of 20264430 is about 272.6328168861.

The spelling of 20264430 in words is "twenty million, two hundred sixty-four thousand, four hundred thirty".