20062405 has 12 divisors (see below), whose sum is σ = 26463276. Its totient is φ = 14590400.

The previous prime is 20062379. The next prime is 20062411. The reversal of 20062405 is 50426002.

It can be written as a sum of positive squares in 2 ways, for example, as 14152644 + 5909761 = 3762^2 + 2431^2 .

It is not a de Polignac number, because 20062405 - 2⁷ = 20062277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15976 + ... + 17185.

It is an arithmetic number, because the mean of its divisors is an integer number (2205273).

Almost surely, 2^20062405 is an apocalyptic number.

It is an amenable number.

20062405 is a deficient number, since it is larger than the sum of its proper divisors (6400871).

20062405 is a wasteful number, since it uses less digits than its factorization.

20062405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33188 (or 33177 counting only the distinct ones).

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

The square root of 20062405 is about 4479.1076120138. The cubic root of 20062405 is about 271.7237905813.

Adding to 20062405 its reverse (50426002), we get a palindrome (70488407).

The spelling of 20062405 in words is "twenty million, sixty-two thousand, four hundred five".