20936476 has 24 divisors (see below), whose sum is σ = 40352256. Its totient is φ = 9425520.

The previous prime is 20936471. The next prime is 20936483. The reversal of 20936476 is 67463902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20936471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (1681344).

Almost surely, 2^20936476 is an apocalyptic number.

It is an amenable number.

20936476 is a deficient number, since it is larger than the sum of its proper divisors (19415780).

20936476 is a wasteful number, since it uses less digits than its factorization.

20936476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 20936476 is about 4575.6394088695. The cubic root of 20936476 is about 275.6139495229.

It can be divided in two parts, 20936 and 476, that added together give a palindrome (21412).

The spelling of 20936476 in words is "twenty million, nine hundred thirty-six thousand, four hundred seventy-six".