82740322 has 12 divisors (see below), whose sum is σ = 144373590. Its totient is φ = 35460096.

The previous prime is 82740319. The next prime is 82740341. The reversal of 82740322 is 22304728.

It can be written as a sum of positive squares in only one way, i.e., 59613841 + 23126481 = 7721^2 + 4809^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422047 + ... + 422242.

Almost surely, 2^82740322 is an apocalyptic number.

82740322 is a deficient number, since it is larger than the sum of its proper divisors (61633268).

82740322 is a wasteful number, since it uses less digits than its factorization.

82740322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844305 (or 844298 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 82740322 is about 9096.1707327864. The cubic root of 82740322 is about 435.7516787299.

The spelling of 82740322 in words is "eighty-two million, seven hundred forty thousand, three hundred twenty-two".