33420331 has 8 divisors (see below), whose sum is σ = 39083264. Its totient is φ = 27979560.

The previous prime is 33420329. The next prime is 33420347. The reversal of 33420331 is 13302433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33420331 - 2¹ = 33420329 is a prime.

It is a super-2 number, since 2×33420331² = 2233837048299122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33420299 and 33420308.

It is not an unprimeable number, because it can be changed into a prime (33420391) by changing a digit.

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, 55215 + ... + 55816.

It is an arithmetic number, because the mean of its divisors is an integer number (4885408).

Almost surely, 2^33420331 is an apocalyptic number.

33420331 is a deficient number, since it is larger than the sum of its proper divisors (5662933).

33420331 is a wasteful number, since it uses less digits than its factorization.

33420331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111081.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 33420331 is about 5781.0320012953. The cubic root of 33420331 is about 322.1095360534.

Adding to 33420331 its reverse (13302433), we get a palindrome (46722764).

The spelling of 33420331 in words is "thirty-three million, four hundred twenty thousand, three hundred thirty-one".