33539436 has 72 divisors (see below), whose sum is σ = 102604320. Its totient is φ = 9017856.

The previous prime is 33539431. The next prime is 33539459. The reversal of 33539436 is 63493533.

It is a super-2 number, since 2×33539436² = 2249787534396192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 33539436.

It is not an unprimeable number, because it can be changed into a prime (33539431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^33539436 is an apocalyptic number.

33539436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33539436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51302160).

33539436 is an abundant number, since it is smaller than the sum of its proper divisors (69064884).

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

33539436 is a wasteful number, since it uses less digits than its factorization.

33539436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863 (or 7858 counting only the distinct ones).

The product of its digits is 87480, while the sum is 36.

The square root of 33539436 is about 5791.3242009060. The cubic root of 33539436 is about 322.4917322560.

The spelling of 33539436 in words is "thirty-three million, five hundred thirty-nine thousand, four hundred thirty-six".