20107232 has 24 divisors (see below), whose sum is σ = 39690000. Its totient is φ = 10027264.

The previous prime is 20107223. The next prime is 20107289. The reversal of 20107232 is 23270102.

It is a self number, because there is not a number n which added to its sum of digits gives 20107232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18644 + ... + 19692.

It is an arithmetic number, because the mean of its divisors is an integer number (1653750).

Almost surely, 2^20107232 is an apocalyptic number.

It is an amenable number.

20107232 is a deficient number, since it is larger than the sum of its proper divisors (19582768).

20107232 is a wasteful number, since it uses less digits than its factorization.

20107232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20107232 is about 4484.1088300798. The cubic root of 20107232 is about 271.9260179415.

Adding to 20107232 its reverse (23270102), we get a palindrome (43377334).

The spelling of 20107232 in words is "twenty million, one hundred seven thousand, two hundred thirty-two".