20672252 has 12 divisors (see below), whose sum is σ = 36550080. Its totient is φ = 10229376.

The previous prime is 20672237. The next prime is 20672261. The reversal of 20672252 is 25227602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26252 + ... + 27027.

It is an arithmetic number, because the mean of its divisors is an integer number (3045840).

Almost surely, 2^20672252 is an apocalyptic number.

It is an amenable number.

20672252 is a deficient number, since it is larger than the sum of its proper divisors (15877828).

20672252 is a wasteful number, since it uses less digits than its factorization.

20672252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53380 (or 53378 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20672252 is about 4546.6748289272. The cubic root of 20672252 is about 274.4495966416.

Adding to 20672252 its reverse (25227602), we get a palindrome (45899854).

The spelling of 20672252 in words is "twenty million, six hundred seventy-two thousand, two hundred fifty-two".