749250 has 80 divisors (see below), whose sum is σ = 2151864. Its totient is φ = 194400.

The previous prime is 749249. The next prime is 749257. The reversal of 749250 is 52947.

It can be written as a sum of positive squares in 4 ways, for example, as 385641 + 363609 = 621^2 + 603^2 .

It is a super-2 number, since 2×749250² = 1122751125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a nialpdrome in base 15.

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 39 ways as a sum of consecutive naturals, for example, 20232 + ... + 20268.

2⁷⁴⁹²⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075932).

749250 is an abundant number, since it is smaller than the sum of its proper divisors (1402614).

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

749250 is a wasteful number, since it uses less digits than its factorization.

749250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 749250 is about 865.5922827752. The cubic root of 749250 is about 90.8257341977.

It can be divided in two parts, 749 and 250, that added together give a palindrome (999).

The spelling of 749250 in words is "seven hundred forty-nine thousand, two hundred fifty".