749442285 has 12 divisors (see below), whose sum is σ = 1299033372. Its totient is φ = 399702528.

The previous prime is 749442257. The next prime is 749442299. The reversal of 749442285 is 582244947.

It can be written as a sum of positive squares in 2 ways, for example, as 393704964 + 355737321 = 19842^2 + 18861^2 .

It is not a de Polignac number, because 749442285 - 2⁹ = 749441773 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 16654273 = 749442285 / (7 + 4 + 9 + 4 + 4 + 2 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 749442285.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8327092 + ... + 8327181.

It is an arithmetic number, because the mean of its divisors is an integer number (108252781).

Almost surely, 2^749442285 is an apocalyptic number.

It is an amenable number.

749442285 is a deficient number, since it is larger than the sum of its proper divisors (549591087).

749442285 is a wasteful number, since it uses less digits than its factorization.

749442285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16654284 (or 16654281 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 749442285 is about 27375.9435453831. The cubic root of 749442285 is about 908.3350327008.

The spelling of 749442285 in words is "seven hundred forty-nine million, four hundred forty-two thousand, two hundred eighty-five".