20027648 has 18 divisors (see below), whose sum is σ = 39977574. Its totient is φ = 10013696.

The previous prime is 20027633. The next prime is 20027659. The reversal of 20027648 is 84672002.

It can be written as a sum of positive squares in only one way, i.e., 11075584 + 8952064 = 3328^2 + 2992^2 .

It is a super-2 number, since 2×20027648² = 802213368823808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20027648.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38861 + ... + 39372.

Almost surely, 2^20027648 is an apocalyptic number.

It is an amenable number.

20027648 is a deficient number, since it is larger than the sum of its proper divisors (19949926).

20027648 is an frugal number, since it uses more digits than its factorization.

20027648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78249 (or 78235 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 20027648 is about 4475.2260278113. The cubic root of 20027648 is about 271.5667844305.

The spelling of 20027648 in words is "twenty million, twenty-seven thousand, six hundred forty-eight".