748449 has 12 divisors (see below), whose sum is σ = 1164436. Its totient is φ = 460512.

The previous prime is 748441. The next prime is 748453. The reversal of 748449 is 944847.

748449 = 157² + 158² + ... + 182².

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 705600 = 207^2 + 840^2 .

It is not a de Polignac number, because 748449 - 2³ = 748441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3082 + ... + 3315.

2⁷⁴⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

748449 is a deficient number, since it is larger than the sum of its proper divisors (415987).

748449 is a wasteful number, since it uses less digits than its factorization.

748449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416 (or 6413 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 748449 is about 865.1294700795. The cubic root of 748449 is about 90.7933563292.

The spelling of 748449 in words is "seven hundred forty-eight thousand, four hundred forty-nine".