329424981 has 4 divisors (see below), whose sum is σ = 439233312. Its totient is φ = 219616652.

The previous prime is 329424971. The next prime is 329425009. The reversal of 329424981 is 189424923.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 329424981 - 2¹⁵ = 329392213 is a prime.

It is a super-2 number, since 2×329424981² = 217041636213700722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329424911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54904161 + ... + 54904166.

It is an arithmetic number, because the mean of its divisors is an integer number (109808328).

Almost surely, 2^329424981 is an apocalyptic number.

It is an amenable number.

329424981 is a deficient number, since it is larger than the sum of its proper divisors (109808331).

329424981 is a wasteful number, since it uses less digits than its factorization.

329424981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109808330.

The product of its digits is 124416, while the sum is 42.

The square root of 329424981 is about 18150.0683469788. The cubic root of 329424981 is about 690.6407134171.

The spelling of 329424981 in words is "three hundred twenty-nine million, four hundred twenty-four thousand, nine hundred eighty-one".