20074528 has 12 divisors (see below), whose sum is σ = 39521790. Its totient is φ = 10037248.

The previous prime is 20074517. The next prime is 20074541. The reversal of 20074528 is 82547002.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 4613904 = 3932^2 + 2148^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20074496 and 20074505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313633 + ... + 313696.

Almost surely, 2^20074528 is an apocalyptic number.

It is an amenable number.

20074528 is a deficient number, since it is larger than the sum of its proper divisors (19447262).

20074528 is an equidigital number, since it uses as much as digits as its factorization.

20074528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627339 (or 627331 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 20074528 is about 4480.4606905987. The cubic root of 20074528 is about 271.7785105784.

It can be divided in two parts, 20074 and 528, that added together give a palindrome (20602).

The spelling of 20074528 in words is "twenty million, seventy-four thousand, five hundred twenty-eight".