20264070 has 64 divisors (see below), whose sum is σ = 52001280. Its totient is φ = 5038848.

The previous prime is 20264047. The next prime is 20264077. The reversal of 20264070 is 7046202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41367 + ... + 41853.

It is an arithmetic number, because the mean of its divisors is an integer number (812520).

Almost surely, 2^20264070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20264070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26000640).

20264070 is an abundant number, since it is smaller than the sum of its proper divisors (31737210).

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

20264070 is a wasteful number, since it uses less digits than its factorization.

20264070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20264070 is about 4501.5630618708. The cubic root of 20264070 is about 272.6312024251.

The spelling of 20264070 in words is "twenty million, two hundred sixty-four thousand, seventy".