329978481 has 16 divisors (see below), whose sum is σ = 503092224. Its totient is φ = 188458704.

The previous prime is 329978461. The next prime is 329978507. The reversal of 329978481 is 184879923.

It is not a de Polignac number, because 329978481 - 2⁹ = 329977969 is a prime.

It is a super-2 number, since 2×329978481² = 217771595846134722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (329978461) 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, 56940 + ... + 62466.

It is an arithmetic number, because the mean of its divisors is an integer number (31443264).

Almost surely, 2^329978481 is an apocalyptic number.

It is an amenable number.

329978481 is a deficient number, since it is larger than the sum of its proper divisors (173113743).

329978481 is a wasteful number, since it uses less digits than its factorization.

329978481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380.

The product of its digits is 870912, while the sum is 51.

The square root of 329978481 is about 18165.3098239474. The cubic root of 329978481 is about 691.0273019274.

The spelling of 329978481 in words is "three hundred twenty-nine million, nine hundred seventy-eight thousand, four hundred eighty-one".