2891226 has 32 divisors (see below), whose sum is σ = 6306048. Its totient is φ = 878400.

The previous prime is 2891219. The next prime is 2891233. The reversal of 2891226 is 6221982.

It is an interprime number because it is at equal distance from previous prime (2891219) and next prime (2891233).

It is a d-powerful number, because it can be written as 2⁴ + 8⁶ + 9⁶ + 1 + 2⁸ + 2²¹ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 2891193 and 2891202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7695 + ... + 8061.

It is an arithmetic number, because the mean of its divisors is an integer number (197064).

2^2891226 is an apocalyptic number.

2891226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2891226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3153024).

2891226 is an abundant number, since it is smaller than the sum of its proper divisors (3414822).

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

2891226 is a wasteful number, since it uses less digits than its factorization.

2891226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 3456, while the sum is 30.

The square root of 2891226 is about 1700.3605500011. The cubic root of 2891226 is about 142.4603521585.

The spelling of 2891226 in words is "two million, eight hundred ninety-one thousand, two hundred twenty-six".