33740028 has 108 divisors (see below), whose sum is σ = 102578112. Its totient is φ = 9313920.

The previous prime is 33739999. The next prime is 33740039. The reversal of 33740028 is 82004733.

It is a super-2 number, since 2×33740028² = 2276778978881568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33739983 and 33740010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54376 + ... + 54992.

Almost surely, 2^33740028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33740028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51289056).

33740028 is an abundant number, since it is smaller than the sum of its proper divisors (68838084).

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

33740028 is a wasteful number, since it uses less digits than its factorization.

33740028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 33740028 is about 5808.6167027959. The cubic root of 33740028 is about 323.1333721877.

The spelling of 33740028 in words is "thirty-three million, seven hundred forty thousand, twenty-eight".