7449668 has 6 divisors (see below), whose sum is σ = 13036926. Its totient is φ = 3724832.

The previous prime is 7449667. The next prime is 7449679. The reversal of 7449668 is 8669447.

It can be written as a sum of positive squares in only one way, i.e., 6543364 + 906304 = 2558^2 + 952^2 .

It is not an unprimeable number, because it can be changed into a prime (7449667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931205 + ... + 931212.

It is an arithmetic number, because the mean of its divisors is an integer number (2172821).

Almost surely, 2^7449668 is an apocalyptic number.

It is an amenable number.

7449668 is a deficient number, since it is larger than the sum of its proper divisors (5587258).

7449668 is a wasteful number, since it uses less digits than its factorization.

7449668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862421 (or 1862419 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 7449668 is about 2729.4079944193. The cubic root of 7449668 is about 195.3045252808.

The spelling of 7449668 in words is "seven million, four hundred forty-nine thousand, six hundred sixty-eight".