1042803440 has 80 divisors (see below), whose sum is σ = 2891386368. Its totient is φ = 341983488.

The previous prime is 1042803413. The next prime is 1042803491. The reversal of 1042803440 is 443082401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27602 + ... + 53361.

Almost surely, 2^1042803440 is an apocalyptic number.

1042803440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042803440 is an abundant number, since it is smaller than the sum of its proper divisors (1848582928).

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

1042803440 is a wasteful number, since it uses less digits than its factorization.

1042803440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81006 (or 81000 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1042803440 is about 32292.4672330870. The cubic root of 1042803440 is about 1014.0689497391.

Adding to 1042803440 its reverse (443082401), we get a palindrome (1485885841).

The spelling of 1042803440 in words is "one billion, forty-two million, eight hundred three thousand, four hundred forty".