33001420 has 48 divisors (see below), whose sum is σ = 75932640. Its totient is φ = 11992064.

The previous prime is 33001417. The next prime is 33001459. The reversal of 33001420 is 2410033.

It is a self number, because there is not a number n which added to its sum of digits gives 33001420.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8187 + ... + 11533.

It is an arithmetic number, because the mean of its divisors is an integer number (1581930).

Almost surely, 2^33001420 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 33001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37966320).

33001420 is an abundant number, since it is smaller than the sum of its proper divisors (42931220).

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

33001420 is a wasteful number, since it uses less digits than its factorization.

33001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402 (or 3400 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33001420 is about 5744.6862403442. The cubic root of 33001420 is about 320.7580336394.

Adding to 33001420 its reverse (2410033), we get a palindrome (35411453).

The spelling of 33001420 in words is "thirty-three million, one thousand, four hundred twenty".