82262740 has 48 divisors (see below), whose sum is σ = 198301824. Its totient is φ = 28080000.

The previous prime is 82262717. The next prime is 82262753. The reversal of 82262740 is 4726228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33970 + ... + 36310.

It is an arithmetic number, because the mean of its divisors is an integer number (4131288).

Almost surely, 2^82262740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82262740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99150912).

82262740 is an abundant number, since it is smaller than the sum of its proper divisors (116039084).

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

82262740 is a wasteful number, since it uses less digits than its factorization.

82262740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 82262740 is about 9069.8809253485. The cubic root of 82262740 is about 434.9116656852.

Adding to 82262740 its reverse (4726228), we get a palindrome (86988968).

The spelling of 82262740 in words is "eighty-two million, two hundred sixty-two thousand, seven hundred forty".