331935894 has 40 divisors (see below), whose sum is σ = 751183488. Its totient is φ = 109544400.

The previous prime is 331935893. The next prime is 331935907. The reversal of 331935894 is 498539133.

It is a super-2 number, since 2×331935894² = 220362875451158472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331935893) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6219 + ... + 26505.

Almost surely, 2^331935894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331935894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375591744).

331935894 is an abundant number, since it is smaller than the sum of its proper divisors (419247594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331935894 is a wasteful number, since it uses less digits than its factorization.

331935894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20402 (or 20393 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 331935894 is about 18219.1079364496. The cubic root of 331935894 is about 692.3909868499.

The spelling of 331935894 in words is "three hundred thirty-one million, nine hundred thirty-five thousand, eight hundred ninety-four".