749256 has 16 divisors (see below), whose sum is σ = 1873200. Its totient is φ = 249744.

The previous prime is 749249. The next prime is 749257. The reversal of 749256 is 652947.

749256 = T₂₉₈ + T₂₉₉ + ... + T₃₁₃.

It is a super-2 number, since 2×749256² = 1122769107072, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (749257) 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 3 ways as a sum of consecutive naturals, for example, 15586 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (117075).

2⁷⁴⁹²⁵⁶ is an apocalyptic number.

It is an amenable number.

749256 is an abundant number, since it is smaller than the sum of its proper divisors (1123944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

749256 is a wasteful number, since it uses less digits than its factorization.

749256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31228 (or 31224 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 749256 is about 865.5957486032. The cubic root of 749256 is about 90.8259766414.

The spelling of 749256 in words is "seven hundred forty-nine thousand, two hundred fifty-six".