20734544 has 20 divisors (see below), whose sum is σ = 40247424. Its totient is φ = 10348128.

The previous prime is 20734531. The next prime is 20734559. The reversal of 20734544 is 44543702.

It is a congruent number.

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, 12449 + ... + 14015.

Almost surely, 2^20734544 is an apocalyptic number.

It is an amenable number.

20734544 is a deficient number, since it is larger than the sum of its proper divisors (19512880).

20734544 is a wasteful number, since it uses less digits than its factorization.

20734544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 20734544 is about 4553.5199571321. The cubic root of 20734544 is about 274.7249878774.

The spelling of 20734544 in words is "twenty million, seven hundred thirty-four thousand, five hundred forty-four".