20236268 has 24 divisors (see below), whose sum is σ = 38504592. Its totient is φ = 9249984.

The previous prime is 20236261. The next prime is 20236277. The reversal of 20236268 is 86263202.

It is a self number, because there is not a number n which added to its sum of digits gives 20236268.

It is not an unprimeable number, because it can be changed into a prime (20236261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3746 + ... + 7382.

It is an arithmetic number, because the mean of its divisors is an integer number (1604358).

Almost surely, 2^20236268 is an apocalyptic number.

It is an amenable number.

20236268 is a deficient number, since it is larger than the sum of its proper divisors (18268324).

20236268 is a wasteful number, since it uses less digits than its factorization.

20236268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20236268 is about 4498.4739634681. The cubic root of 20236268 is about 272.5064633879.

The spelling of 20236268 in words is "twenty million, two hundred thirty-six thousand, two hundred sixty-eight".