1043404421 has 8 divisors (see below), whose sum is σ = 1047816000. Its totient is φ = 1039001920.

The previous prime is 1043404391. The next prime is 1043404447. The reversal of 1043404421 is 1244043401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1043404421 - 2⁶ = 1043404357 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 (1043434421) 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, 314630 + ... + 317928.

It is an arithmetic number, because the mean of its divisors is an integer number (130977000).

Almost surely, 2^1043404421 is an apocalyptic number.

It is an amenable number.

1043404421 is a deficient number, since it is larger than the sum of its proper divisors (4411579).

1043404421 is an equidigital number, since it uses as much as digits as its factorization.

1043404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1043404421 is about 32301.7711743489. The cubic root of 1043404421 is about 1014.2637193094.

Adding to 1043404421 its reverse (1244043401), we get a palindrome (2287447822).

The spelling of 1043404421 in words is "one billion, forty-three million, four hundred four thousand, four hundred twenty-one".