3443143440 has 80 divisors (see below), whose sum is σ = 11644094016. Its totient is φ = 834700800.

The previous prime is 3443143427. The next prime is 3443143471. The reversal of 3443143440 is 443413443.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3443143398 and 3443143407.

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, 649471 + ... + 654750.

Almost surely, 2^3443143440 is an apocalyptic number.

3443143440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3443143440 is an abundant number, since it is smaller than the sum of its proper divisors (8200950576).

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

3443143440 is a wasteful number, since it uses less digits than its factorization.

3443143440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304248 (or 1304242 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 3443143440 is about 58678.3046789868. The cubic root of 3443143440 is about 1510.0281327449.

Adding to 3443143440 its reverse (443413443), we get a palindrome (3886556883).

The spelling of 3443143440 in words is "three billion, four hundred forty-three million, one hundred forty-three thousand, four hundred forty".