2251366 has 16 divisors (see below), whose sum is σ = 3670128. Its totient is φ = 1029600.

The previous prime is 2251349. The next prime is 2251369. The reversal of 2251366 is 6631522.

2251366 = T₁₁₆ + T₁₁₇ + ... + T₂₄₆.

It is a self number, because there is not a number n which added to its sum of digits gives 2251366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251369) 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, 3076 + ... + 3736.

It is an arithmetic number, because the mean of its divisors is an integer number (229383).

2^2251366 is an apocalyptic number.

2251366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2251366 is a deficient number, since it is larger than the sum of its proper divisors (1418762).

2251366 is a wasteful number, since it uses less digits than its factorization.

2251366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its digits is 2160, while the sum is 25.

The square root of 2251366 is about 1500.4552642448. The cubic root of 2251366 is about 131.0635823661.

Adding to 2251366 its reverse (6631522), we get a palindrome (8882888).

The spelling of 2251366 in words is "two million, two hundred fifty-one thousand, three hundred sixty-six".