20288246 has 16 divisors (see below), whose sum is σ = 33496848. Its totient is φ = 9139200.

The previous prime is 20288237. The next prime is 20288251. The reversal of 20288246 is 64288202.

It is a happy number.

It is a super-2 number, since 2×20288246² = 823225851513032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (2093553).

Almost surely, 2^20288246 is an apocalyptic number.

20288246 is a deficient number, since it is larger than the sum of its proper divisors (13208602).

20288246 is a wasteful number, since it uses less digits than its factorization.

20288246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 20288246 is about 4504.2475509235. The cubic root of 20288246 is about 272.7395800035.

The spelling of 20288246 in words is "twenty million, two hundred eighty-eight thousand, two hundred forty-six".