20452332 has 24 divisors (see below), whose sum is σ = 48738816. Its totient is φ = 6672208.

The previous prime is 20452307. The next prime is 20452357. The reversal of 20452332 is 23325402.

It is an interprime number because it is at equal distance from previous prime (20452307) and next prime (20452357).

It is a junction number, because it is equal to n+sod(n) for n = 20452299 and 20452308.

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, 17568 + ... + 18695.

It is an arithmetic number, because the mean of its divisors is an integer number (2030784).

Almost surely, 2^20452332 is an apocalyptic number.

It is an amenable number.

20452332 is an abundant number, since it is smaller than the sum of its proper divisors (28286484).

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

20452332 is a wasteful number, since it uses less digits than its factorization.

20452332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36317 (or 36315 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20452332 is about 4522.4254554387. The cubic root of 20452332 is about 273.4728886138.

Adding to 20452332 its reverse (23325402), we get a palindrome (43777734).

The spelling of 20452332 in words is "twenty million, four hundred fifty-two thousand, three hundred thirty-two".