20763004 has 12 divisors (see below), whose sum is σ = 36374184. Its totient is φ = 10370384.

The previous prime is 20762999. The next prime is 20763007. The reversal of 20763004 is 40036702.

It is a super-2 number, since 2×20763004² = 862204670208032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20763007) 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, 2562 + ... + 6934.

It is an arithmetic number, because the mean of its divisors is an integer number (3031182).

Almost surely, 2^20763004 is an apocalyptic number.

It is an amenable number.

20763004 is a deficient number, since it is larger than the sum of its proper divisors (15611180).

20763004 is a wasteful number, since it uses less digits than its factorization.

20763004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5562 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20763004 is about 4556.6439404456. The cubic root of 20763004 is about 274.8506252132.

Adding to 20763004 its reverse (40036702), we get a palindrome (60799706).

The spelling of 20763004 in words is "twenty million, seven hundred sixty-three thousand, four".