1043029840 has 40 divisors (see below), whose sum is σ = 2458277928. Its totient is φ = 411494400.

The previous prime is 1043029787. The next prime is 1043029853. The reversal of 1043029840 is 489203401.

It can be written as a sum of positive squares in 4 ways, for example, as 13133376 + 1029896464 = 3624^2 + 32092^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1043029840² = 2175822494260851200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83461 + ... + 95140.

Almost surely, 2^1043029840 is an apocalyptic number.

1043029840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043029840 is an abundant number, since it is smaller than the sum of its proper divisors (1415248088).

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

1043029840 is a wasteful number, since it uses less digits than its factorization.

1043029840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178687 (or 178681 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1043029840 is about 32295.9725043232. The cubic root of 1043029840 is about 1014.1423316084.

The spelling of 1043029840 in words is "one billion, forty-three million, twenty-nine thousand, eight hundred forty".