20226156 has 24 divisors (see below), whose sum is σ = 47274864. Its totient is φ = 6730560.

The previous prime is 20226119. The next prime is 20226163. The reversal of 20226156 is 65162202.

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, 8826 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (1969786).

Almost surely, 2^20226156 is an apocalyptic number.

It is an amenable number.

20226156 is an abundant number, since it is smaller than the sum of its proper divisors (27048708).

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

20226156 is a wasteful number, since it uses less digits than its factorization.

20226156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20226156 is about 4497.3498863219. The cubic root of 20226156 is about 272.4610656155.

Adding to 20226156 its reverse (65162202), we get a palindrome (85388358).

The spelling of 20226156 in words is "twenty million, two hundred twenty-six thousand, one hundred fifty-six".