82774242 has 12 divisors (see below), whose sum is σ = 179344230. Its totient is φ = 27591408.

The previous prime is 82774231. The next prime is 82774301. The reversal of 82774242 is 24247728.

It can be written as a sum of positive squares in only one way, i.e., 52403121 + 30371121 = 7239^2 + 5511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82774197 and 82774206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2299267 + ... + 2299302.

Almost surely, 2^82774242 is an apocalyptic number.

82774242 is an abundant number, since it is smaller than the sum of its proper divisors (96569988).

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

82774242 is a wasteful number, since it uses less digits than its factorization.

82774242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598577 (or 4598574 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 82774242 is about 9098.0350625836. The cubic root of 82774242 is about 435.8112171235.

The spelling of 82774242 in words is "eighty-two million, seven hundred seventy-four thousand, two hundred forty-two".