33542420 has 12 divisors (see below), whose sum is σ = 70439124. Its totient is φ = 13416960.

The previous prime is 33542407. The next prime is 33542449. The reversal of 33542420 is 2424533.

It can be written as a sum of positive squares in 2 ways, for example, as 3818116 + 29724304 = 1954^2 + 5452^2 .

It is a super-2 number, since 2×33542420² = 2250187878912800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838541 + ... + 838580.

It is an arithmetic number, because the mean of its divisors is an integer number (5869927).

Almost surely, 2^33542420 is an apocalyptic number.

It is an amenable number.

33542420 is an abundant number, since it is smaller than the sum of its proper divisors (36896704).

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

33542420 is a wasteful number, since it uses less digits than its factorization.

33542420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677130 (or 1677128 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 33542420 is about 5791.5818219205. The cubic root of 33542420 is about 322.5012959906.

Adding to 33542420 its reverse (2424533), we get a palindrome (35966953).

The spelling of 33542420 in words is "thirty-three million, five hundred forty-two thousand, four hundred twenty".