4491594 has 12 divisors (see below), whose sum is σ = 9731826. Its totient is φ = 1497192.

The previous prime is 4491569. The next prime is 4491623. The reversal of 4491594 is 4951944.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4149369 + 342225 = 2037^2 + 585^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124749 + ... + 124784.

Almost surely, 2^4491594 is an apocalyptic number.

4491594 is an abundant number, since it is smaller than the sum of its proper divisors (5240232).

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

4491594 is a wasteful number, since it uses less digits than its factorization.

4491594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249541 (or 249538 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4491594 is about 2119.3381042203. The cubic root of 4491594 is about 164.9934983664.

The spelling of 4491594 in words is "four million, four hundred ninety-one thousand, five hundred ninety-four".