749522 has 4 divisors (see below), whose sum is σ = 1124286. Its totient is φ = 374760.

The previous prime is 749471. The next prime is 749543. The reversal of 749522 is 225947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225947 = 17 ⋅13291.

It can be written as a sum of positive squares in only one way, i.e., 546121 + 203401 = 739^2 + 451^2 .

It is an unprimeable number.

749522 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187379 + ... + 187382.

2⁷⁴⁹⁵²² is an apocalyptic number.

749522 is a deficient number, since it is larger than the sum of its proper divisors (374764).

749522 is a wasteful number, since it uses less digits than its factorization.

749522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374763.

The product of its digits is 5040, while the sum is 29.

The square root of 749522 is about 865.7493863700. The cubic root of 749522 is about 90.8367236808.

The spelling of 749522 in words is "seven hundred forty-nine thousand, five hundred twenty-two".