45774 has 12 divisors (see below), whose sum is σ = 99216. Its totient is φ = 15252.

The previous prime is 45767. The next prime is 45779. The reversal of 45774 is 47754.

Added to its reverse (47754) it gives a triangular number (93528 = T₄₃₂).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45779) by changing a digit.

45774 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1254 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (8268).

2⁴⁵⁷⁷⁴ is an apocalyptic number.

45774 is an abundant number, since it is smaller than the sum of its proper divisors (53442).

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

45774 is a wasteful number, since it uses less digits than its factorization.

45774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2548 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 45774 is about 213.9485919561. The cubic root of 45774 is about 35.7717034498.

Adding to 45774 its product of digits (3920), we get a palindrome (49694).

Adding to 45774 its reverse (47754), we get a triangular number (93528 = T₄₃₂).

It can be divided in two parts, 4 and 5774, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 45774 in words is "forty-five thousand, seven hundred seventy-four".