20061764 has 12 divisors (see below), whose sum is σ = 35531664. Its totient is φ = 9909864.

The previous prime is 20061761. The next prime is 20061781. The reversal of 20061764 is 46716002.

It is not an unprimeable number, because it can be changed into a prime (20061761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29882 + ... + 30545.

It is an arithmetic number, because the mean of its divisors is an integer number (2960972).

Almost surely, 2^20061764 is an apocalyptic number.

It is an amenable number.

20061764 is a deficient number, since it is larger than the sum of its proper divisors (15469900).

20061764 is a wasteful number, since it uses less digits than its factorization.

20061764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60514 (or 60512 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20061764 is about 4479.0360570105. The cubic root of 20061764 is about 271.7208966643.

Adding to 20061764 its reverse (46716002), we get a palindrome (66777766).

The spelling of 20061764 in words is "twenty million, sixty-one thousand, seven hundred sixty-four".