33261012 has 18 divisors (see below), whose sum is σ = 84076538. Its totient is φ = 11086992.

The previous prime is 33260971. The next prime is 33261037. The reversal of 33261012 is 21016233.

It can be written as a sum of positive squares in only one way, i.e., 21399876 + 11861136 = 4626^2 + 3444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×33261012² = 2212589838528288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 461923 + ... + 461994.

Almost surely, 2^33261012 is an apocalyptic number.

It is an amenable number.

33261012 is an abundant number, since it is smaller than the sum of its proper divisors (50815526).

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

33261012 is a wasteful number, since it uses less digits than its factorization.

33261012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923927 (or 923922 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 33261012 is about 5767.2360797873. The cubic root of 33261012 is about 321.5968747376.

Adding to 33261012 its reverse (21016233), we get a palindrome (54277245).

The spelling of 33261012 in words is "thirty-three million, two hundred sixty-one thousand, twelve".