7449489 has 10 divisors (see below), whose sum is σ = 11128370. Its totient is φ = 4966272.

The previous prime is 7449487. The next prime is 7449509. The reversal of 7449489 is 9849447.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 731025 = 2592^2 + 855^2 .

It is not a de Polignac number, because 7449489 - 2¹ = 7449487 is a prime.

It is a super-2 number, since 2×7449489² = 110989772722242, which contains 22 as substring.

It is a Duffinian number.

7449489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7449487) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 45904 + ... + 46065.

It is an arithmetic number, because the mean of its divisors is an integer number (1112837).

Almost surely, 2^7449489 is an apocalyptic number.

It is an amenable number.

7449489 is a deficient number, since it is larger than the sum of its proper divisors (3678881).

7449489 is an equidigital number, since it uses as much as digits as its factorization.

7449489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91981 (or 91972 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7449489 is about 2729.3752032288. The cubic root of 7449489 is about 195.3029610147.

The spelling of 7449489 in words is "seven million, four hundred forty-nine thousand, four hundred eighty-nine".