4422591 has 12 divisors (see below), whose sum is σ = 6417840. Its totient is φ = 2934720.

The previous prime is 4422589. The next prime is 4422599. The reversal of 4422591 is 1952244.

4422591 = T₅₈ + T₅₉ + ... + T₂₉₈.

It is not a de Polignac number, because 4422591 - 2¹ = 4422589 is a prime.

It is a super-2 number, since 2×4422591² = 39118622306562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4422599) 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, 1150 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (534820).

Almost surely, 2^4422591 is an apocalyptic number.

4422591 is a deficient number, since it is larger than the sum of its proper divisors (1995249).

4422591 is a wasteful number, since it uses less digits than its factorization.

4422591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2283 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 4422591 is about 2102.9957203951. The cubic root of 4422591 is about 164.1442192618.

The spelling of 4422591 in words is "four million, four hundred twenty-two thousand, five hundred ninety-one".