82420332 has 24 divisors (see below), whose sum is σ = 197005872. Its totient is φ = 26803200.

The previous prime is 82420321. The next prime is 82420357. The reversal of 82420332 is 23302428.

It is a super-2 number, since 2×82420332² = 13586222253980448, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 83269 + ... + 84252.

It is an arithmetic number, because the mean of its divisors is an integer number (8208578).

Almost surely, 2^82420332 is an apocalyptic number.

82420332 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

82420332 is an abundant number, since it is smaller than the sum of its proper divisors (114585540).

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

82420332 is a wasteful number, since it uses less digits than its factorization.

82420332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167569 (or 167567 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 82420332 is about 9078.5644239604. The cubic root of 82420332 is about 435.1892108570.

The spelling of 82420332 in words is "eighty-two million, four hundred twenty thousand, three hundred thirty-two".