20077328 has 10 divisors (see below), whose sum is σ = 38899854. Its totient is φ = 10038656.

The previous prime is 20077327. The next prime is 20077333. The reversal of 20077328 is 82377002.

It can be written as a sum of positive squares in only one way, i.e., 15272464 + 4804864 = 3908^2 + 2192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20077328.

It is not an unprimeable number, because it can be changed into a prime (20077327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627401 + ... + 627432.

Almost surely, 2^20077328 is an apocalyptic number.

It is an amenable number.

20077328 is a deficient number, since it is larger than the sum of its proper divisors (18822526).

20077328 is a wasteful number, since it uses less digits than its factorization.

20077328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254841 (or 1254835 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 20077328 is about 4480.7731475717. The cubic root of 20077328 is about 271.7911459016.

The spelling of 20077328 in words is "twenty million, seventy-seven thousand, three hundred twenty-eight".