333972381 has 16 divisors (see below), whose sum is σ = 463982400. Its totient is φ = 213416448.

The previous prime is 333972349. The next prime is 333972389. The reversal of 333972381 is 183279333.

It is not a de Polignac number, because 333972381 - 2⁵ = 333972349 is a prime.

It is a super-2 number, since 2×333972381² = 223075102541618322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333972389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716 + ... + 25901.

It is an arithmetic number, because the mean of its divisors is an integer number (28998900).

Almost surely, 2^333972381 is an apocalyptic number.

It is an amenable number.

333972381 is a deficient number, since it is larger than the sum of its proper divisors (130010019).

333972381 is a wasteful number, since it uses less digits than its factorization.

333972381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27788.

The product of its digits is 81648, while the sum is 39.

The square root of 333972381 is about 18274.9112446545. The cubic root of 333972381 is about 693.8040824002.

It can be divided in two parts, 33397 and 2381, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 333972381 in words is "three hundred thirty-three million, nine hundred seventy-two thousand, three hundred eighty-one".