749166 has 16 divisors (see below), whose sum is σ = 1634688. Its totient is φ = 227000.

The previous prime is 749153. The next prime is 749167. The reversal of 749166 is 661947.

It is a happy number.

It is a super-2 number, since 2×749166² = 1122499391112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam 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 (749167) by changing a digit.

749166 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 in 7 ways as a sum of consecutive naturals, for example, 5610 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (102168).

2⁷⁴⁹¹⁶⁶ is an apocalyptic number.

749166 is an abundant number, since it is smaller than the sum of its proper divisors (885522).

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

749166 is a wasteful number, since it uses less digits than its factorization.

749166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11367.

The product of its digits is 9072, while the sum is 33.

The square root of 749166 is about 865.5437597256. The cubic root of 749166 is about 90.8223398492.

It can be divided in two parts, 7491 and 66, that added together give a palindrome (7557).

The spelling of 749166 in words is "seven hundred forty-nine thousand, one hundred sixty-six".