20332469 has 2 divisors, whose sum is σ = 20332470. Its totient is φ = 20332468.

The previous prime is 20332439. The next prime is 20332511. The reversal of 20332469 is 96423302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 3010225 = 4162^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332469 - 2²⁰ = 19283893 is a prime.

It is a super-2 number, since 2×20332469² = 826818591271922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166234 + 10166235.

It is an arithmetic number, because the mean of its divisors is an integer number (10166235).

Almost surely, 2^20332469 is an apocalyptic number.

It is an amenable number.

20332469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332469 is an equidigital number, since it uses as much as digits as its factorization.

20332469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 20332469 is about 4509.1539117666. The cubic root of 20332469 is about 272.9376028640.

The spelling of 20332469 in words is "twenty million, three hundred thirty-two thousand, four hundred sixty-nine".