7491449 has 4 divisors (see below), whose sum is σ = 8561664. Its totient is φ = 6421236.

The previous prime is 7491439. The next prime is 7491457. The reversal of 7491449 is 9441947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9441947 = 59 ⋅160033.

It is a cyclic number.

It is not a de Polignac number, because 7491449 - 2²⁰ = 6442873 is a prime.

It is a super-2 number, since 2×7491449² = 112243616239202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7491439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535097 + ... + 535110.

It is an arithmetic number, because the mean of its divisors is an integer number (2140416).

Almost surely, 2^7491449 is an apocalyptic number.

It is an amenable number.

7491449 is a deficient number, since it is larger than the sum of its proper divisors (1070215).

7491449 is a wasteful number, since it uses less digits than its factorization.

7491449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070214.

The product of its digits is 36288, while the sum is 38.

The square root of 7491449 is about 2737.0511504172. The cubic root of 7491449 is about 195.6689625837.

The spelling of 7491449 in words is "seven million, four hundred ninety-one thousand, four hundred forty-nine".