33534040 has 16 divisors (see below), whose sum is σ = 75451680. Its totient is φ = 13413600.

The previous prime is 33533987. The next prime is 33534041. The reversal of 33534040 is 4043533.

It is a super-2 number, since 2×33534040² = 2249063677443200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33534041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419136 + ... + 419215.

It is an arithmetic number, because the mean of its divisors is an integer number (4715730).

Almost surely, 2^33534040 is an apocalyptic number.

It is an amenable number.

33534040 is an abundant number, since it is smaller than the sum of its proper divisors (41917640).

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

33534040 is a wasteful number, since it uses less digits than its factorization.

33534040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838362 (or 838358 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 33534040 is about 5790.8583128928. The cubic root of 33534040 is about 322.4744366092.

Adding to 33534040 its reverse (4043533), we get a palindrome (37577573).

The spelling of 33534040 in words is "thirty-three million, five hundred thirty-four thousand, forty".