33720442 has 8 divisors (see below), whose sum is σ = 57806496. Its totient is φ = 14451612.

The previous prime is 33720437. The next prime is 33720487. The reversal of 33720442 is 24402733.

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

It is a super-2 number, since 2×33720442² = 2274136417350728, which contains 22 as substring.

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, 1204288 + ... + 1204315.

It is an arithmetic number, because the mean of its divisors is an integer number (7225812).

Almost surely, 2^33720442 is an apocalyptic number.

33720442 is a deficient number, since it is larger than the sum of its proper divisors (24086054).

33720442 is a wasteful number, since it uses less digits than its factorization.

33720442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408612.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 33720442 is about 5806.9305144801. The cubic root of 33720442 is about 323.0708340529.

The spelling of 33720442 in words is "thirty-three million, seven hundred twenty thousand, four hundred forty-two".