30746 has 4 divisors (see below), whose sum is σ = 46122. Its totient is φ = 15372.

The previous prime is 30727. The next prime is 30757. The reversal of 30746 is 64703.

30746 = 45² + 46² + ... + 56².

30746 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64703 = 89 ⋅727.

It can be written as a sum of positive squares in only one way, i.e., 30625 + 121 = 175^2 + 11^2 .

It is a Curzon number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30746.

It is an unprimeable number.

30746 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7685 + ... + 7688.

2³⁰⁷⁴⁶ is an apocalyptic number.

30746 is a deficient number, since it is larger than the sum of its proper divisors (15376).

30746 is a wasteful number, since it uses less digits than its factorization.

30746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15375.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30746 is about 175.3453734776. The cubic root of 30746 is about 31.3277742766.

It can be divided in two parts, 307 and 46, that added together give a palindrome (353).

The spelling of 30746 in words is "thirty thousand, seven hundred forty-six".