20452132 has 24 divisors (see below), whose sum is σ = 37822400. Its totient is φ = 9650016.

The previous prime is 20452123. The next prime is 20452147. The reversal of 20452132 is 23125402.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33058 + ... + 33670.

Almost surely, 2^20452132 is an apocalyptic number.

It is an amenable number.

20452132 is a deficient number, since it is larger than the sum of its proper divisors (17370268).

20452132 is a wasteful number, since it uses less digits than its factorization.

20452132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20452132 is about 4522.4033433563. The cubic root of 20452132 is about 273.4719971954.

Adding to 20452132 its reverse (23125402), we get a palindrome (43577534).

The spelling of 20452132 in words is "twenty million, four hundred fifty-two thousand, one hundred thirty-two".