20126764 has 12 divisors (see below), whose sum is σ = 40253584. Its totient is φ = 8625744.

The previous prime is 20126761. The next prime is 20126801. The reversal of 20126764 is 46762102.

20126764 is an admirable number.

It is a super-2 number, since 2×20126764² = 810173258223392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 718813 = 20126764 / (2 + 0 + 1 + 2 + 6 + 7 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (20126761) 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 3 ways as a sum of consecutive naturals, for example, 359379 + ... + 359434.

Almost surely, 2^20126764 is an apocalyptic number.

It is an amenable number.

20126764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20126764 is a wasteful number, since it uses less digits than its factorization.

20126764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718824 (or 718822 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20126764 is about 4486.2862146769. The cubic root of 20126764 is about 272.0140383470.

Adding to 20126764 its reverse (46762102), we get a palindrome (66888866).

The spelling of 20126764 in words is "twenty million, one hundred twenty-six thousand, seven hundred sixty-four".