20743160 has 16 divisors (see below), whose sum is σ = 46672200. Its totient is φ = 8297248.

The previous prime is 20743103. The next prime is 20743181. The reversal of 20743160 is 6134702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259250 + ... + 259329.

Almost surely, 2^20743160 is an apocalyptic number.

20743160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20743160 is an abundant number, since it is smaller than the sum of its proper divisors (25929040).

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

20743160 is a wasteful number, since it uses less digits than its factorization.

20743160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518590 (or 518586 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20743160 is about 4554.4659401515. The cubic root of 20743160 is about 274.7630355384.

Adding to 20743160 its reverse (6134702), we get a palindrome (26877862).

The spelling of 20743160 in words is "twenty million, seven hundred forty-three thousand, one hundred sixty".