328445743 has 8 divisors (see below), whose sum is σ = 335327760. Its totient is φ = 321607680.

The previous prime is 328445737. The next prime is 328445753. The reversal of 328445743 is 347544823.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328445743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328445696 and 328445705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328445753) 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, 4333 + ... + 25993.

It is an arithmetic number, because the mean of its divisors is an integer number (41915970).

Almost surely, 2^328445743 is an apocalyptic number.

328445743 is a deficient number, since it is larger than the sum of its proper divisors (6882017).

328445743 is a wasteful number, since it uses less digits than its factorization.

328445743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21977.

The product of its digits is 322560, while the sum is 40.

The square root of 328445743 is about 18123.0721181592. The cubic root of 328445743 is about 689.9557088422.

The spelling of 328445743 in words is "three hundred twenty-eight million, four hundred forty-five thousand, seven hundred forty-three".