1024443440 has 20 divisors (see below), whose sum is σ = 2381831184. Its totient is φ = 409777344.

The previous prime is 1024443419. The next prime is 1024443461. The reversal of 1024443440 is 443444201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1024443419) and next prime (1024443461).

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6402692 + ... + 6402851.

Almost surely, 2^1024443440 is an apocalyptic number.

1024443440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1024443440 is an abundant number, since it is smaller than the sum of its proper divisors (1357387744).

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

1024443440 is a wasteful number, since it uses less digits than its factorization.

1024443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12805556 (or 12805550 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1024443440 is about 32006.9280000440. The cubic root of 1024443440 is about 1008.0823135519.

Adding to 1024443440 its reverse (443444201), we get a palindrome (1467887641).

The spelling of 1024443440 in words is "one billion, twenty-four million, four hundred forty-three thousand, four hundred forty".