20468339 has 18 divisors (see below), whose sum is σ = 22699980. Its totient is φ = 18447480.

The previous prime is 20468333. The next prime is 20468341. The reversal of 20468339 is 93386402.

It is a happy number.

It is not a de Polignac number, because 20468339 - 2¹⁶ = 20402803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20468299 and 20468308.

It is not an unprimeable number, because it can be changed into a prime (20468333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 346892 + ... + 346950.

It is an arithmetic number, because the mean of its divisors is an integer number (1261110).

Almost surely, 2^20468339 is an apocalyptic number.

20468339 is a deficient number, since it is larger than the sum of its proper divisors (2231641).

20468339 is an equidigital number, since it uses as much as digits as its factorization.

20468339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 20468339 is about 4524.1948454946. The cubic root of 20468339 is about 273.5442144494.

The spelling of 20468339 in words is "twenty million, four hundred sixty-eight thousand, three hundred thirty-nine".