82252390 has 32 divisors (see below), whose sum is σ = 161927424. Its totient is φ = 29833440.

The previous prime is 82252367. The next prime is 82252403. The reversal of 82252390 is 9325228.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 59487 + ... + 60853.

It is an arithmetic number, because the mean of its divisors is an integer number (5060232).

Almost surely, 2^82252390 is an apocalyptic number.

82252390 is a deficient number, since it is larger than the sum of its proper divisors (79675034).

82252390 is a wasteful number, since it uses less digits than its factorization.

82252390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 82252390 is about 9069.3103376166. The cubic root of 82252390 is about 434.8934252500.

The spelling of 82252390 in words is "eighty-two million, two hundred fifty-two thousand, three hundred ninety".