33140016 has 200 divisors, whose sum is σ = 118471584. Its totient is φ = 8709120.

The previous prime is 33139973. The next prime is 33140017. The reversal of 33140016 is 61004133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33140017) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 117796 + ... + 118076.

Almost surely, 2^33140016 is an apocalyptic number.

33140016 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 33140016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59235792).

33140016 is an abundant number, since it is smaller than the sum of its proper divisors (85331568).

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

33140016 is a wasteful number, since it uses less digits than its factorization.

33140016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 33140016 is about 5756.7365755261. The cubic root of 33140016 is about 321.2064354719.

Adding to 33140016 its reverse (61004133), we get a palindrome (94144149).

The spelling of 33140016 in words is "thirty-three million, one hundred forty thousand, sixteen".