20744452 has 12 divisors (see below), whose sum is σ = 36762880. Its totient is φ = 10240776.

The previous prime is 20744443. The next prime is 20744467. The reversal of 20744452 is 25444702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20744452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32508 + ... + 33139.

Almost surely, 2^20744452 is an apocalyptic number.

It is an amenable number.

20744452 is a deficient number, since it is larger than the sum of its proper divisors (16018428).

20744452 is a wasteful number, since it uses less digits than its factorization.

20744452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65730 (or 65728 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 20744452 is about 4554.6077767465. The cubic root of 20744452 is about 274.7687400128.

The spelling of 20744452 in words is "twenty million, seven hundred forty-four thousand, four hundred fifty-two".