33126420 has 24 divisors (see below), whose sum is σ = 92754144. Its totient is φ = 8833696.

The previous prime is 33126413. The next prime is 33126449. The reversal of 33126420 is 2462133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275994 + ... + 276113.

It is an arithmetic number, because the mean of its divisors is an integer number (3864756).

Almost surely, 2^33126420 is an apocalyptic number.

33126420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33126420 is an abundant number, since it is smaller than the sum of its proper divisors (59627724).

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

33126420 is a wasteful number, since it uses less digits than its factorization.

33126420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552119 (or 552117 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33126420 is about 5755.5555770056. Note that the first 4 decimals coincide. The cubic root of 33126420 is about 321.1625034870.

Adding to 33126420 its reverse (2462133), we get a palindrome (35588553).

The spelling of 33126420 in words is "thirty-three million, one hundred twenty-six thousand, four hundred twenty".