20746304 has 14 divisors (see below), whose sum is σ = 41168574. Its totient is φ = 10373120.

The previous prime is 20746303. The next prime is 20746351. The reversal of 20746304 is 40364702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20720704 + 25600 = 4552^2 + 160^2 .

It is not an unprimeable number, because it can be changed into a prime (20746301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162017 + ... + 162144.

Almost surely, 2^20746304 is an apocalyptic number.

It is an amenable number.

20746304 is a deficient number, since it is larger than the sum of its proper divisors (20422270).

20746304 is an equidigital number, since it uses as much as digits as its factorization.

20746304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324173 (or 324163 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20746304 is about 4554.8110828003. The cubic root of 20746304 is about 274.7769166016.

The spelling of 20746304 in words is "twenty million, seven hundred forty-six thousand, three hundred four".