82782442 has 8 divisors (see below), whose sum is σ = 124233732. Its totient is φ = 41371200.

The previous prime is 82782421. The next prime is 82782473. The reversal of 82782442 is 24428728.

It can be written as a sum of positive squares in 2 ways, for example, as 82646281 + 136161 = 9091^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4159 + ... + 13522.

Almost surely, 2^82782442 is an apocalyptic number.

82782442 is a deficient number, since it is larger than the sum of its proper divisors (41451290).

82782442 is a wasteful number, since it uses less digits than its factorization.

82782442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024.

The product of its digits is 57344, while the sum is 37.

The square root of 82782442 is about 9098.4856981808. The cubic root of 82782442 is about 435.8256078079.

The spelling of 82782442 in words is "eighty-two million, seven hundred eighty-two thousand, four hundred forty-two".