20173952 has 24 divisors (see below), whose sum is σ = 40291785. Its totient is φ = 10061568.

The previous prime is 20173949. The next prime is 20173957. The reversal of 20173952 is 25937102.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 19571776 + 602176 = 4424^2 + 776^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3176.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20173957) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 50618 + ... + 51014.

Almost surely, 2^20173952 is an apocalyptic number.

It is an amenable number.

20173952 is a deficient number, since it is larger than the sum of its proper divisors (20117833).

20173952 is an frugal number, since it uses more digits than its factorization.

20173952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 20173952 is about 4491.5422740969. The cubic root of 20173952 is about 272.2264550100.

The spelling of 20173952 in words is "twenty million, one hundred seventy-three thousand, nine hundred fifty-two".