20672152 has 32 divisors (see below), whose sum is σ = 41025600. Its totient is φ = 9738144.

The previous prime is 20672131. The next prime is 20672227. The reversal of 20672152 is 25127602.

It is a super-2 number, since 2×20672152² = 854675736622208, which contains 22 as substring.

It is a congruent 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, 46443 + ... + 46885.

It is an arithmetic number, because the mean of its divisors is an integer number (1282050).

Almost surely, 2^20672152 is an apocalyptic number.

It is an amenable number.

20672152 is a deficient number, since it is larger than the sum of its proper divisors (20353448).

20672152 is a wasteful number, since it uses less digits than its factorization.

20672152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20672152 is about 4546.6638318662. The cubic root of 20672152 is about 274.4491540998.

Adding to 20672152 its reverse (25127602), we get a palindrome (45799754).

The spelling of 20672152 in words is "twenty million, six hundred seventy-two thousand, one hundred fifty-two".