33450012 has 36 divisors (see below), whose sum is σ = 84731920. Its totient is φ = 11126592.

The previous prime is 33449993. The next prime is 33450031. The reversal of 33450012 is 21005433.

It is an interprime number because it is at equal distance from previous prime (33449993) and next prime (33450031).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×33450012² = 2237806605600288, 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 11 ways as a sum of consecutive naturals, for example, 29064 + ... + 30192.

Almost surely, 2^33450012 is an apocalyptic number.

It is an amenable number.

33450012 is an abundant number, since it is smaller than the sum of its proper divisors (51281908).

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

33450012 is a wasteful number, since it uses less digits than its factorization.

33450012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 33450012 is about 5783.5985337850. The cubic root of 33450012 is about 322.2048642959.

Adding to 33450012 its reverse (21005433), we get a palindrome (54455445).

The spelling of 33450012 in words is "thirty-three million, four hundred fifty thousand, twelve".