11220458 has 16 divisors (see below), whose sum is σ = 17637696. Its totient is φ = 5343360.

The previous prime is 11220457. The next prime is 11220467. The reversal of 11220458 is 85402211.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (11220457) 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, 15893 + ... + 16583.

It is an arithmetic number, because the mean of its divisors is an integer number (1102356).

Almost surely, 2^11220458 is an apocalyptic number.

11220458 is a deficient number, since it is larger than the sum of its proper divisors (6417238).

11220458 is a wasteful number, since it uses less digits than its factorization.

11220458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 11220458 is about 3349.6952100154. The cubic root of 11220458 is about 223.8739325701.

Adding to 11220458 its reverse (85402211), we get a palindrome (96622669).

The spelling of 11220458 in words is "eleven million, two hundred twenty thousand, four hundred fifty-eight".