1044400343 has 4 divisors (see below), whose sum is σ = 1193600400. Its totient is φ = 895200288.

The previous prime is 1044400319. The next prime is 1044400363. The reversal of 1044400343 is 3430044401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430044401 = 7 ⋅490006343.

It is a cyclic number.

It is not a de Polignac number, because 1044400343 - 2¹² = 1044396247 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 (1044400363) 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, 74600018 + ... + 74600031.

It is an arithmetic number, because the mean of its divisors is an integer number (298400100).

Almost surely, 2^1044400343 is an apocalyptic number.

1044400343 is a deficient number, since it is larger than the sum of its proper divisors (149200057).

1044400343 is an equidigital number, since it uses as much as digits as its factorization.

1044400343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149200056.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1044400343 is about 32317.1834014043. The cubic root of 1044400343 is about 1014.5863191615.

Adding to 1044400343 its reverse (3430044401), we get a palindrome (4474444744).

The spelling of 1044400343 in words is "one billion, forty-four million, four hundred thousand, three hundred forty-three".