4991226 has 16 divisors (see below), whose sum is σ = 10252704. Its totient is φ = 1618704.

The previous prime is 4991201. The next prime is 4991237. The reversal of 4991226 is 6221994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11020 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (640794).

Almost surely, 2^4991226 is an apocalyptic number.

4991226 is an abundant number, since it is smaller than the sum of its proper divisors (5261478).

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

4991226 is a wasteful number, since it uses less digits than its factorization.

4991226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22525.

The product of its digits is 7776, while the sum is 33.

The square root of 4991226 is about 2234.1051900034. The cubic root of 4991226 is about 170.8975139112.

The spelling of 4991226 in words is "four million, nine hundred ninety-one thousand, two hundred twenty-six".