20045952 has 48 divisors (see below), whose sum is σ = 57687630. Its totient is φ = 6681600.

The previous prime is 20045951. The next prime is 20045953. The reversal of 20045952 is 25954002.

20045952 is a `hidden beast` number, since 200 + 459 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (20045951) and next prime (20045953).

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 3594816 = 4056^2 + 1896^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20045951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7549 + ... + 9852.

Almost surely, 2^20045952 is an apocalyptic number.

It is an amenable number.

20045952 is an abundant number, since it is smaller than the sum of its proper divisors (37641678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20045952 is a wasteful number, since it uses less digits than its factorization.

20045952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17421 (or 17406 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 20045952 is about 4477.2705971384. The cubic root of 20045952 is about 271.6494908450.

Adding to 20045952 its reverse (25954002), we get a palindrome (45999954).

The spelling of 20045952 in words is "twenty million, forty-five thousand, nine hundred fifty-two".