1043404120 has 64 divisors (see below), whose sum is σ = 2567181600. Its totient is φ = 378516480.

The previous prime is 1043404097. The next prime is 1043404123. The reversal of 1043404120 is 214043401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043404123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198486 + ... + 203674.

Almost surely, 2^1043404120 is an apocalyptic number.

1043404120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043404120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283590800).

1043404120 is an abundant number, since it is smaller than the sum of its proper divisors (1523777480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1043404120 is a wasteful number, since it uses less digits than its factorization.

1043404120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668 (or 5664 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1043404120 is about 32301.7665151614. The cubic root of 1043404120 is about 1014.2636217782.

Adding to 1043404120 its reverse (214043401), we get a palindrome (1257447521).

The spelling of 1043404120 in words is "one billion, forty-three million, four hundred four thousand, one hundred twenty".