16211268 has 36 divisors (see below), whose sum is σ = 43390620. Its totient is φ = 5085696.

The previous prime is 16211267. The next prime is 16211309. The reversal of 16211268 is 86211261.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 8020224 = 2862^2 + 2832^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (16211263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12633 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (1205295).

Almost surely, 2^16211268 is an apocalyptic number.

16211268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16211268 is an abundant number, since it is smaller than the sum of its proper divisors (27179352).

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

16211268 is a wasteful number, since it uses less digits than its factorization.

16211268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26516 (or 26511 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 16211268 is about 4026.3218947322. The cubic root of 16211268 is about 253.0884514217.

The spelling of 16211268 in words is "sixteen million, two hundred eleven thousand, two hundred sixty-eight".