20043415 has 16 divisors (see below), whose sum is σ = 27578880. Its totient is φ = 13698720.

The previous prime is 20043409. The next prime is 20043433. The reversal of 20043415 is 51434002.

It is not a de Polignac number, because 20043415 - 2³ = 20043407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20043392 and 20043401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12510 + ... + 14020.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^20043415 is an apocalyptic number.

20043415 is a deficient number, since it is larger than the sum of its proper divisors (7535465).

20043415 is a wasteful number, since it uses less digits than its factorization.

20043415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902.

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

The square root of 20043415 is about 4476.9872682419. The cubic root of 20043415 is about 271.6380304458.

Adding to 20043415 its reverse (51434002), we get a palindrome (71477417).

The spelling of 20043415 in words is "twenty million, forty-three thousand, four hundred fifteen".