1000744321 has 4 divisors (see below), whose sum is σ = 1059611652. Its totient is φ = 941876992.

The previous prime is 1000744319. The next prime is 1000744331. The reversal of 1000744321 is 1234470001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1234470001 = 2207 ⋅559343.

It can be written as a sum of positive squares in 2 ways, for example, as 841000000 + 159744321 = 29000^2 + 12639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000744321 - 2¹ = 1000744319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000744292 and 1000744301.

It is not an unprimeable number, because it can be changed into a prime (1000744301) 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, 29433640 + ... + 29433673.

It is an arithmetic number, because the mean of its divisors is an integer number (264902913).

Almost surely, 2^1000744321 is an apocalyptic number.

It is an amenable number.

1000744321 is a deficient number, since it is larger than the sum of its proper divisors (58867331).

1000744321 is an equidigital number, since it uses as much as digits as its factorization.

1000744321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58867330.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1000744321 is about 31634.5431609183. The cubic root of 1000744321 is about 1000.2480454684.

The spelling of 1000744321 in words is "one billion, seven hundred forty-four thousand, three hundred twenty-one".