4991422 has 16 divisors (see below), whose sum is σ = 7938000. Its totient is φ = 2349760.

The previous prime is 4991419. The next prime is 4991423. The reversal of 4991422 is 2241994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991423) 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, 1329 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (496125).

Almost surely, 2^4991422 is an apocalyptic number.

4991422 is a deficient number, since it is larger than the sum of its proper divisors (2946578).

4991422 is a wasteful number, since it uses less digits than its factorization.

4991422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its digits is 5184, while the sum is 31.

The square root of 4991422 is about 2234.1490550095. The cubic root of 4991422 is about 170.8997508682.

The spelling of 4991422 in words is "four million, nine hundred ninety-one thousand, four hundred twenty-two".