33130746 has 48 divisors (see below), whose sum is σ = 78904800. Its totient is φ = 9963360.

The previous prime is 33130733. The next prime is 33130751. The reversal of 33130746 is 64703133.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28941 + ... + 30063.

It is an arithmetic number, because the mean of its divisors is an integer number (1643850).

Almost surely, 2^33130746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33130746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39452400).

33130746 is an abundant number, since it is smaller than the sum of its proper divisors (45774054).

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

33130746 is a wasteful number, since it uses less digits than its factorization.

33130746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 33130746 is about 5755.9313755464. The cubic root of 33130746 is about 321.1764831495.

Adding to 33130746 its reverse (64703133), we get a palindrome (97833879).

The spelling of 33130746 in words is "thirty-three million, one hundred thirty thousand, seven hundred forty-six".