749405 has 8 divisors (see below), whose sum is σ = 912384. Its totient is φ = 590800.

The previous prime is 749401. The next prime is 749423. The reversal of 749405 is 504947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 749405 - 2² = 749401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (114048).

2⁷⁴⁹⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

749405 is a deficient number, since it is larger than the sum of its proper divisors (162979).

749405 is a wasteful number, since it uses less digits than its factorization.

749405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187.

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

The square root of 749405 is about 865.6818122151. The cubic root of 749405 is about 90.8319969129.

The spelling of 749405 in words is "seven hundred forty-nine thousand, four hundred five".