329677972 has 24 divisors (see below), whose sum is σ = 622720616. Its totient is φ = 151815168.

The previous prime is 329677951. The next prime is 329677979. The reversal of 329677972 is 279776923.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46294416 + 283383556 = 6804^2 + 16834^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329677979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16828 + ... + 30700.

Almost surely, 2^329677972 is an apocalyptic number.

It is an amenable number.

329677972 is a deficient number, since it is larger than the sum of its proper divisors (293042644).

329677972 is a wasteful number, since it uses less digits than its factorization.

329677972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347 (or 14345 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 52.

The square root of 329677972 is about 18157.0364321934. The cubic root of 329677972 is about 690.8174670387.

The spelling of 329677972 in words is "three hundred twenty-nine million, six hundred seventy-seven thousand, nine hundred seventy-two".