33450020 has 12 divisors (see below), whose sum is σ = 70245084. Its totient is φ = 13380000.

The previous prime is 33449993. The next prime is 33450031. The reversal of 33450020 is 2005433.

It can be written as a sum of positive squares in 2 ways, for example, as 12802084 + 20647936 = 3578^2 + 4544^2 .

It is a super-2 number, since 2×33450020² = 2237807676000800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836231 + ... + 836270.

It is an arithmetic number, because the mean of its divisors is an integer number (5853757).

Almost surely, 2^33450020 is an apocalyptic number.

It is an amenable number.

33450020 is an abundant number, since it is smaller than the sum of its proper divisors (36795064).

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

33450020 is a wasteful number, since it uses less digits than its factorization.

33450020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672510 (or 1672508 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 33450020 is about 5783.5992253959. The cubic root of 33450020 is about 322.2048899824.

Adding to 33450020 its reverse (2005433), we get a palindrome (35455453).

The spelling of 33450020 in words is "thirty-three million, four hundred fifty thousand, twenty".