20371268 has 12 divisors (see below), whose sum is σ = 37526160. Its totient is φ = 9649512.

The previous prime is 20371243. The next prime is 20371289. The reversal of 20371268 is 86217302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20371268.

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, 133946 + ... + 134097.

It is an arithmetic number, because the mean of its divisors is an integer number (3127180).

Almost surely, 2^20371268 is an apocalyptic number.

It is an amenable number.

20371268 is a deficient number, since it is larger than the sum of its proper divisors (17154892).

20371268 is a wasteful number, since it uses less digits than its factorization.

20371268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268066 (or 268064 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20371268 is about 4513.4541096593. The cubic root of 20371268 is about 273.1111016706. Note that the first 4 decimals are identical.

The spelling of 20371268 in words is "twenty million, three hundred seventy-one thousand, two hundred sixty-eight".