1039945323 has 4 divisors (see below), whose sum is σ = 1386593768. Its totient is φ = 693296880.

The previous prime is 1039945321. The next prime is 1039945327. The reversal of 1039945323 is 3235499301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3235499301 = 3 ⋅1078499767.

It is not a de Polignac number, because 1039945323 - 2¹ = 1039945321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1039945321) 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, 173324218 + ... + 173324223.

It is an arithmetic number, because the mean of its divisors is an integer number (346648442).

Almost surely, 2^1039945323 is an apocalyptic number.

1039945323 is a deficient number, since it is larger than the sum of its proper divisors (346648445).

1039945323 is an equidigital number, since it uses as much as digits as its factorization.

1039945323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346648444.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 1039945323 is about 32248.1832511539. The cubic root of 1039945323 is about 1013.1416482152.

The spelling of 1039945323 in words is "one billion, thirty-nine million, nine hundred forty-five thousand, three hundred twenty-three".