33201420 has 144 divisors (see below), whose sum is σ = 113073408. Its totient is φ = 7244160.

The previous prime is 33201419. The next prime is 33201449. The reversal of 33201420 is 2410233.

It is a super-2 number, since 2×33201420² = 2204668580032800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 33201420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67375 + ... + 67865.

It is an arithmetic number, because the mean of its divisors is an integer number (785232).

Almost surely, 2^33201420 is an apocalyptic number.

33201420 is a gapful number since it is divisible by the number (30) 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 33201420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56536704).

33201420 is an abundant number, since it is smaller than the sum of its proper divisors (79871988).

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

33201420 is a wasteful number, since it uses less digits than its factorization.

33201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 33201420 is about 5762.0673373365. The cubic root of 33201420 is about 321.4046972038.

Adding to 33201420 its reverse (2410233), we get a palindrome (35611653).

The spelling of 33201420 in words is "thirty-three million, two hundred one thousand, four hundred twenty".