20415160 has 16 divisors (see below), whose sum is σ = 45934200. Its totient is φ = 8166048.

The previous prime is 20415149. The next prime is 20415163. The reversal of 20415160 is 6151402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20415163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255150 + ... + 255229.

Almost surely, 2^20415160 is an apocalyptic number.

20415160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20415160 is an abundant number, since it is smaller than the sum of its proper divisors (25519040).

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

20415160 is a wasteful number, since it uses less digits than its factorization.

20415160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510390 (or 510386 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20415160 is about 4518.3138447877. The cubic root of 20415160 is about 273.3071096529.

Adding to 20415160 its reverse (6151402), we get a palindrome (26566562).

The spelling of 20415160 in words is "twenty million, four hundred fifteen thousand, one hundred sixty".