20544632 has 8 divisors (see below), whose sum is σ = 38521200. Its totient is φ = 10272312.

The previous prime is 20544611. The next prime is 20544659. The reversal of 20544632 is 23644502.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284032 + ... + 1284047.

It is an arithmetic number, because the mean of its divisors is an integer number (4815150).

Almost surely, 2^20544632 is an apocalyptic number.

It is an amenable number.

20544632 is a deficient number, since it is larger than the sum of its proper divisors (17976568).

20544632 is a wasteful number, since it uses less digits than its factorization.

20544632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568085 (or 2568081 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 20544632 is about 4532.6186691580. The cubic root of 20544632 is about 273.8836595615.

The spelling of 20544632 in words is "twenty million, five hundred forty-four thousand, six hundred thirty-two".