1043013440 has 56 divisors (see below), whose sum is σ = 2838492672. Its totient is φ = 357603840.

The previous prime is 1043013437. The next prime is 1043013443. The reversal of 1043013440 is 443103401.

It is a happy number.

1043013440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1043013437) and next prime (1043013443).

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043013443) 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, 230576 + ... + 235055.

Almost surely, 2^1043013440 is an apocalyptic number.

1043013440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043013440 is an abundant number, since it is smaller than the sum of its proper divisors (1795479232).

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

1043013440 is an equidigital number, since it uses as much as digits as its factorization.

1043013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465655 (or 465645 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1043013440 is about 32295.7186016970. The cubic root of 1043013440 is about 1014.1370163174.

Adding to 1043013440 its reverse (443103401), we get a palindrome (1486116841).

The spelling of 1043013440 in words is "one billion, forty-three million, thirteen thousand, four hundred forty".