82143488 has 72 divisors (see below), whose sum is σ = 195635328. Its totient is φ = 33656832.

The previous prime is 82143463. The next prime is 82143491. The reversal of 82143488 is 88434128.

It is a super-2 number, since 2×82143488² = 13495105241612288, which contains 22 as substring.

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, 40220 + ... + 42212.

Almost surely, 2^82143488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82143488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97817664).

82143488 is an abundant number, since it is smaller than the sum of its proper divisors (113491840).

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

82143488 is a wasteful number, since it uses less digits than its factorization.

82143488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2025 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 82143488 is about 9063.3044746384. The cubic root of 82143488 is about 434.7014078061.

The spelling of 82143488 in words is "eighty-two million, one hundred forty-three thousand, four hundred eighty-eight".