20544634 has 8 divisors (see below), whose sum is σ = 33618528. Its totient is φ = 9338460.

The previous prime is 20544611. The next prime is 20544659. The reversal of 20544634 is 43644502.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 466902 + ... + 466945.

It is an arithmetic number, because the mean of its divisors is an integer number (4202316).

Almost surely, 2^20544634 is an apocalyptic number.

20544634 is a deficient number, since it is larger than the sum of its proper divisors (13073894).

20544634 is a wasteful number, since it uses less digits than its factorization.

20544634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933860.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 20544634 is about 4532.6188897811. The cubic root of 20544634 is about 273.8836684490.

The spelling of 20544634 in words is "twenty million, five hundred forty-four thousand, six hundred thirty-four".