33349986 has 48 divisors (see below), whose sum is σ = 75928320. Its totient is φ = 10565280.

The previous prime is 33349973. The next prime is 33349993. The reversal of 33349986 is 68994333.

It is a super-2 number, since 2×33349986² = 2224443132400392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32416 + ... + 33428.

It is an arithmetic number, because the mean of its divisors is an integer number (1581840).

Almost surely, 2^33349986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33349986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37964160).

33349986 is an abundant number, since it is smaller than the sum of its proper divisors (42578334).

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

33349986 is a wasteful number, since it uses less digits than its factorization.

33349986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1108 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 33349986 is about 5774.9446750597. The cubic root of 33349986 is about 321.8833791893.

The spelling of 33349986 in words is "thirty-three million, three hundred forty-nine thousand, nine hundred eighty-six".