1043440401 has 8 divisors (see below), whose sum is σ = 1391432320. Its totient is φ = 695537712.

The previous prime is 1043440397. The next prime is 1043440417. The reversal of 1043440401 is 1040443401.

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

It is not a de Polignac number, because 1043440401 - 2² = 1043440397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043442401) 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, 12936 + ... + 47478.

It is an arithmetic number, because the mean of its divisors is an integer number (173929040).

Almost surely, 2^1043440401 is an apocalyptic number.

It is an amenable number.

1043440401 is a deficient number, since it is larger than the sum of its proper divisors (347991919).

1043440401 is a wasteful number, since it uses less digits than its factorization.

1043440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44615.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1043440401 is about 32302.3281049524. The cubic root of 1043440401 is about 1014.2753775531.

Adding to 1043440401 its reverse (1040443401), we get a palindrome (2083883802).

The spelling of 1043440401 in words is "one billion, forty-three million, four hundred forty thousand, four hundred one".