333981842 has 4 divisors (see below), whose sum is σ = 500972766. Its totient is φ = 166990920.

The previous prime is 333981841. The next prime is 333981887. The reversal of 333981842 is 248189333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248189333 = 7 ⋅35455619.

It can be written as a sum of positive squares in only one way, i.e., 328733161 + 5248681 = 18131^2 + 2291^2 .

It is a super-2 number, since 2×333981842² = 223087741571425928, 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 333981842.

It is not an unprimeable number, because it can be changed into a prime (333981841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83495459 + ... + 83495462.

Almost surely, 2^333981842 is an apocalyptic number.

333981842 is a deficient number, since it is larger than the sum of its proper divisors (166990924).

333981842 is a wasteful number, since it uses less digits than its factorization.

333981842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166990923.

The product of its digits is 124416, while the sum is 41.

The square root of 333981842 is about 18275.1700949677. The cubic root of 333981842 is about 693.8106338585.

The spelling of 333981842 in words is "three hundred thirty-three million, nine hundred eighty-one thousand, eight hundred forty-two".