20616232 has 32 divisors (see below), whose sum is σ = 47577600. Its totient is φ = 8155584.

The previous prime is 20616229. The next prime is 20616263. The reversal of 20616232 is 23261602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13432 + ... + 14887.

It is an arithmetic number, because the mean of its divisors is an integer number (1486800).

Almost surely, 2^20616232 is an apocalyptic number.

It is an amenable number.

20616232 is an abundant number, since it is smaller than the sum of its proper divisors (26961368).

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

20616232 is a wasteful number, since it uses less digits than its factorization.

20616232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28345 (or 28341 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20616232 is about 4540.5101035016. The cubic root of 20616232 is about 274.2014608740.

Adding to 20616232 its reverse (23261602), we get a palindrome (43877834).

The spelling of 20616232 in words is "twenty million, six hundred sixteen thousand, two hundred thirty-two".