20677024 has 12 divisors (see below), whose sum is σ = 40707954. Its totient is φ = 10338496.

The previous prime is 20677003. The next prime is 20677037. The reversal of 20677024 is 42077602.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 1140624 = 4420^2 + 1068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20676983 and 20677001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323047 + ... + 323110.

Almost surely, 2^20677024 is an apocalyptic number.

It is an amenable number.

20677024 is a deficient number, since it is larger than the sum of its proper divisors (20030930).

20677024 is an equidigital number, since it uses as much as digits as its factorization.

20677024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646167 (or 646159 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20677024 is about 4547.1995777621. The cubic root of 20677024 is about 274.4707130752.

The spelling of 20677024 in words is "twenty million, six hundred seventy-seven thousand, twenty-four".