20100764 has 12 divisors (see below), whose sum is σ = 35212800. Its totient is φ = 10039968.

The previous prime is 20100733. The next prime is 20100809. The reversal of 20100764 is 46700102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152 + ... + 7080.

It is an arithmetic number, because the mean of its divisors is an integer number (2934400).

Almost surely, 2^20100764 is an apocalyptic number.

It is an amenable number.

20100764 is a deficient number, since it is larger than the sum of its proper divisors (15112036).

20100764 is a wasteful number, since it uses less digits than its factorization.

20100764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20100764 is about 4483.3875585321. The cubic root of 20100764 is about 271.8968575196.

Adding to 20100764 its reverse (46700102), we get a palindrome (66800866).

The spelling of 20100764 in words is "twenty million, one hundred thousand, seven hundred sixty-four".