20012264 has 64 divisors (see below), whose sum is σ = 42230160. Its totient is φ = 8847360.

The previous prime is 20012261. The next prime is 20012287. The reversal of 20012264 is 46221002.

It can be written as a sum of positive squares in 8 ways, for example, as 11356900 + 8655364 = 3370^2 + 2942^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (20012261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206264 + ... + 206360.

Almost surely, 2^20012264 is an apocalyptic number.

It is an amenable number.

20012264 is an abundant number, since it is smaller than the sum of its proper divisors (22217896).

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

20012264 is a wasteful number, since it uses less digits than its factorization.

20012264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20012264 is about 4473.5069017495. The cubic root of 20012264 is about 271.4972330188.

Adding to 20012264 its reverse (46221002), we get a palindrome (66233266).

The spelling of 20012264 in words is "twenty million, twelve thousand, two hundred sixty-four".