82240315 has 4 divisors (see below), whose sum is σ = 98688384. Its totient is φ = 65792248.

The previous prime is 82240313. The next prime is 82240351. The reversal of 82240315 is 51304228.

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

It is a cyclic number.

It is not a de Polignac number, because 82240315 - 2¹ = 82240313 is a prime.

It is a super-2 number, since 2×82240315² = 13526938822598450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82240315.

It is not an unprimeable number, because it can be changed into a prime (82240313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8224027 + ... + 8224036.

It is an arithmetic number, because the mean of its divisors is an integer number (24672096).

Almost surely, 2^82240315 is an apocalyptic number.

82240315 is a deficient number, since it is larger than the sum of its proper divisors (16448069).

82240315 is a wasteful number, since it uses less digits than its factorization.

82240315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16448068.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 82240315 is about 9068.6446065551. The cubic root of 82240315 is about 434.8721428082.

The spelling of 82240315 in words is "eighty-two million, two hundred forty thousand, three hundred fifteen".