11455218 has 24 divisors (see below), whose sum is σ = 25069356. Its totient is φ = 3780000.

The previous prime is 11455217. The next prime is 11455231. The reversal of 11455218 is 81255411.

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 1361889 = 3177^2 + 1167^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11455191 and 11455200.

It is not an unprimeable number, because it can be changed into a prime (11455217) 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, 1333 + ... + 4968.

Almost surely, 2^11455218 is an apocalyptic number.

11455218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11455218 is an abundant number, since it is smaller than the sum of its proper divisors (13614138).

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

11455218 is a wasteful number, since it uses less digits than its factorization.

11455218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410 (or 6407 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 11455218 is about 3384.5558054197. Note that the first 3 decimals coincide. The cubic root of 11455218 is about 225.4245023013.

The spelling of 11455218 in words is "eleven million, four hundred fifty-five thousand, two hundred eighteen".