82669240 has 32 divisors (see below), whose sum is σ = 189967680. Its totient is φ = 32363392.

The previous prime is 82669201. The next prime is 82669259. The reversal of 82669240 is 4296628.

It is a self number, because there is not a number n which added to its sum of digits gives 82669240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20107 + ... + 23866.

It is an arithmetic number, because the mean of its divisors is an integer number (5936490).

Almost surely, 2^82669240 is an apocalyptic number.

It is an amenable number.

82669240 is an abundant number, since it is smaller than the sum of its proper divisors (107298440).

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

82669240 is a wasteful number, since it uses less digits than its factorization.

82669240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44031 (or 44027 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 82669240 is about 9092.2626446886. The cubic root of 82669240 is about 435.6268585929.

The spelling of 82669240 in words is "eighty-two million, six hundred sixty-nine thousand, two hundred forty".