1023328349 has 4 divisors (see below), whose sum is σ = 1023546300. Its totient is φ = 1023110400.

The previous prime is 1023328343. The next prime is 1023328357. The reversal of 1023328349 is 9438233201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9438233201 = 1543 ⋅6116807.

It can be written as a sum of positive squares in 2 ways, for example, as 659205625 + 364122724 = 25675^2 + 19082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023328349 - 2⁴ = 1023328333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023328343) 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, 101774 + ... + 111375.

It is an arithmetic number, because the mean of its divisors is an integer number (255886575).

Almost surely, 2^1023328349 is an apocalyptic number.

It is an amenable number.

1023328349 is a deficient number, since it is larger than the sum of its proper divisors (217951).

1023328349 is an equidigital number, since it uses as much as digits as its factorization.

1023328349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217950.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1023328349 is about 31989.5037316930. The cubic root of 1023328349 is about 1007.7164200418.

The spelling of 1023328349 in words is "one billion, twenty-three million, three hundred twenty-eight thousand, three hundred forty-nine".