20061632 has 28 divisors (see below), whose sum is σ = 42153840. Its totient is φ = 9440256.

The previous prime is 20061623. The next prime is 20061653. The reversal of 20061632 is 23616002.

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, 8132 + ... + 10307.

Almost surely, 2^20061632 is an apocalyptic number.

It is an amenable number.

20061632 is an abundant number, since it is smaller than the sum of its proper divisors (22092208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20061632 is a wasteful number, since it uses less digits than its factorization.

20061632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18468 (or 18458 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20061632 is about 4479.0213216728. The cubic root of 20061632 is about 271.7203007174.

Adding to 20061632 its reverse (23616002), we get a palindrome (43677634).

The spelling of 20061632 in words is "twenty million, sixty-one thousand, six hundred thirty-two".