33163040 has 24 divisors (see below), whose sum is σ = 78348060. Its totient is φ = 13265152.

The previous prime is 33163021. The next prime is 33163049. The reversal of 33163040 is 4036133.

It can be written as a sum of positive squares in 2 ways, for example, as 27836176 + 5326864 = 5276^2 + 2308^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (33163049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103475 + ... + 103794.

Almost surely, 2^33163040 is an apocalyptic number.

It is an amenable number.

33163040 is an abundant number, since it is smaller than the sum of its proper divisors (45185020).

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

33163040 is a wasteful number, since it uses less digits than its factorization.

33163040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207284 (or 207276 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 33163040 is about 5758.7359724162. The cubic root of 33163040 is about 321.2808042246.

Adding to 33163040 its reverse (4036133), we get a palindrome (37199173).

The spelling of 33163040 in words is "thirty-three million, one hundred sixty-three thousand, forty".