33981442 has 16 divisors (see below), whose sum is σ = 58024512. Its totient is φ = 14774320.

The previous prime is 33981433. The next prime is 33981457. The reversal of 33981442 is 24418933.

It is a junction number, because it is equal to n+sod(n) for n = 33981398 and 33981407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33073 + ... + 34084.

It is an arithmetic number, because the mean of its divisors is an integer number (3626532).

Almost surely, 2^33981442 is an apocalyptic number.

33981442 is a deficient number, since it is larger than the sum of its proper divisors (24043070).

33981442 is a wasteful number, since it uses less digits than its factorization.

33981442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67193.

The product of its digits is 20736, while the sum is 34.

The square root of 33981442 is about 5829.3603422674. The cubic root of 33981442 is about 323.9022275223.

The spelling of 33981442 in words is "thirty-three million, nine hundred eighty-one thousand, four hundred forty-two".