71443000 has 32 divisors (see below), whose sum is σ = 167178960. Its totient is φ = 28576800.

The previous prime is 71442953. The next prime is 71443013. The reversal of 71443000 is 34417.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34722 + ... + 36721.

Almost surely, 2^71443000 is an apocalyptic number.

It is an amenable number.

71443000 is an abundant number, since it is smaller than the sum of its proper divisors (95735960).

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

71443000 is a wasteful number, since it uses less digits than its factorization.

71443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71464 (or 71450 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 71443000 is about 8452.3961099797. The cubic root of 71443000 is about 414.9412022955.

Adding to 71443000 its reverse (34417), we get a palindrome (71477417).

The spelling of 71443000 in words is "seventy-one million, four hundred forty-three thousand".