749445 has 16 divisors (see below), whose sum is σ = 1270080. Its totient is φ = 376064.

The previous prime is 749443. The next prime is 749449. The reversal of 749445 is 544947.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 749445 - 2¹ = 749443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215 + ... + 1724.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁷⁴⁹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

749445 is a deficient number, since it is larger than the sum of its proper divisors (520635).

749445 is a wasteful number, since it uses less digits than its factorization.

749445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its digits is 20160, while the sum is 33.

The square root of 749445 is about 865.7049150837. The cubic root of 749445 is about 90.8336129573.

The spelling of 749445 in words is "seven hundred forty-nine thousand, four hundred forty-five".