33242730 has 16 divisors (see below), whose sum is σ = 79782624. Its totient is φ = 8864720.

The previous prime is 33242719. The next prime is 33242753. The reversal of 33242730 is 3724233.

It is a happy number.

It is a super-2 number, since 2×33242730² = 2210158195705800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33242730.

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 7 ways as a sum of consecutive naturals, for example, 554016 + ... + 554075.

It is an arithmetic number, because the mean of its divisors is an integer number (4986414).

Almost surely, 2^33242730 is an apocalyptic number.

33242730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33242730 is an abundant number, since it is smaller than the sum of its proper divisors (46539894).

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

33242730 is a wasteful number, since it uses less digits than its factorization.

33242730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108101.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 33242730 is about 5765.6508739257. The cubic root of 33242730 is about 321.5379417581.

Adding to 33242730 its reverse (3724233), we get a palindrome (36966963).

The spelling of 33242730 in words is "thirty-three million, two hundred forty-two thousand, seven hundred thirty".