33849390 has 16 divisors (see below), whose sum is σ = 81238608. Its totient is φ = 9026496.

The previous prime is 33849383. The next prime is 33849391. The reversal of 33849390 is 9394833.

It is a super-2 number, since 2×33849390² = 2291562406744200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33849391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564127 + ... + 564186.

It is an arithmetic number, because the mean of its divisors is an integer number (5077413).

Almost surely, 2^33849390 is an apocalyptic number.

33849390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33849390 is an abundant number, since it is smaller than the sum of its proper divisors (47389218).

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

33849390 is a wasteful number, since it uses less digits than its factorization.

33849390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128323.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 33849390 is about 5818.0228600445. The cubic root of 33849390 is about 323.4821211513.

The spelling of 33849390 in words is "thirty-three million, eight hundred forty-nine thousand, three hundred ninety".