33012930 has 32 divisors (see below), whose sum is σ = 79406208. Its totient is φ = 8784000.

The previous prime is 33012907. The next prime is 33012943. The reversal of 33012930 is 3921033.

It is a junction number, because it is equal to n+sod(n) for n = 33012897 and 33012906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17115 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (2481444).

Almost surely, 2^33012930 is an apocalyptic number.

33012930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33012930 is an abundant number, since it is smaller than the sum of its proper divisors (46393278).

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

33012930 is a wasteful number, since it uses less digits than its factorization.

33012930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 33012930 is about 5745.6879483661. The cubic root of 33012930 is about 320.7953198717.

Adding to 33012930 its reverse (3921033), we get a palindrome (36933963).

The spelling of 33012930 in words is "thirty-three million, twelve thousand, nine hundred thirty".