20226015 has 24 divisors (see below), whose sum is σ = 35212320. Its totient is φ = 10739904.

The previous prime is 20226001. The next prime is 20226023. The reversal of 20226015 is 51062202.

It is not a de Polignac number, because 20226015 - 2⁴ = 20225999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10981 + ... + 12689.

It is an arithmetic number, because the mean of its divisors is an integer number (1467180).

Almost surely, 2^20226015 is an apocalyptic number.

20226015 is a deficient number, since it is larger than the sum of its proper divisors (14986305).

20226015 is a wasteful number, since it uses less digits than its factorization.

20226015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20226015 is about 4497.3342103962. The cubic root of 20226015 is about 272.4604324897.

Adding to 20226015 its reverse (51062202), we get a palindrome (71288217).

The spelling of 20226015 in words is "twenty million, two hundred twenty-six thousand, fifteen".