82240238 has 4 divisors (see below), whose sum is σ = 123360360. Its totient is φ = 41120118.

The previous prime is 82240217. The next prime is 82240253. The reversal of 82240238 is 83204228.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 82240238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20560058 + ... + 20560061.

It is an arithmetic number, because the mean of its divisors is an integer number (30840090).

Almost surely, 2^82240238 is an apocalyptic number.

82240238 is a deficient number, since it is larger than the sum of its proper divisors (41120122).

82240238 is a wasteful number, since it uses less digits than its factorization.

82240238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41120121.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 82240238 is about 9068.6403611567. The cubic root of 82240238 is about 434.8720070874.

The spelling of 82240238 in words is "eighty-two million, two hundred forty thousand, two hundred thirty-eight".