82443276 has 18 divisors (see below), whose sum is σ = 208398372. Its totient is φ = 27481080.

The previous prime is 82443271. The next prime is 82443313. The reversal of 82443276 is 67234428.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×82443276² = 13593787515224352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2290091 = 82443276 / (8 + 2 + 4 + 4 + 3 + 2 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 82443276.

It is not an unprimeable number, because it can be changed into a prime (82443271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145010 + ... + 1145081.

Almost surely, 2^82443276 is an apocalyptic number.

It is an amenable number.

82443276 is an abundant number, since it is smaller than the sum of its proper divisors (125955096).

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

82443276 is a wasteful number, since it uses less digits than its factorization.

82443276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290101 (or 2290096 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 82443276 is about 9079.8279719387. The cubic root of 82443276 is about 435.2295894651.

It can be divided in two parts, 824 and 43276, that added together give a square (44100 = 210²).

The spelling of 82443276 in words is "eighty-two million, four hundred forty-three thousand, two hundred seventy-six".