2443491 has 6 divisors (see below), whose sum is σ = 3529500. Its totient is φ = 1628988.

The previous prime is 2443439. The next prime is 2443501. The reversal of 2443491 is 1943442.

It is not a de Polignac number, because 2443491 - 2¹⁷ = 2312419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2443421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135741 + ... + 135758.

It is an arithmetic number, because the mean of its divisors is an integer number (588250).

2^2443491 is an apocalyptic number.

2443491 is a deficient number, since it is larger than the sum of its proper divisors (1086009).

2443491 is a wasteful number, since it uses less digits than its factorization.

2443491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271505 (or 271502 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2443491 is about 1563.1669776451. The cubic root of 2443491 is about 134.6904843287.

The spelling of 2443491 in words is "two million, four hundred forty-three thousand, four hundred ninety-one".