20672232 has 32 divisors (see below), whose sum is σ = 59064000. Its totient is φ = 5906304.

The previous prime is 20672231. The next prime is 20672237. The reversal of 20672232 is 23227602.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20672231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61357 + ... + 61692.

It is an arithmetic number, because the mean of its divisors is an integer number (1845750).

Almost surely, 2^20672232 is an apocalyptic number.

It is an amenable number.

20672232 is an abundant number, since it is smaller than the sum of its proper divisors (38391768).

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

20672232 is a wasteful number, since it uses less digits than its factorization.

20672232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123065 (or 123061 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20672232 is about 4546.6726295171. The cubic root of 20672232 is about 274.4495081333.

Adding to 20672232 its reverse (23227602), we get a palindrome (43899834).

The spelling of 20672232 in words is "twenty million, six hundred seventy-two thousand, two hundred thirty-two".