82438502 has 8 divisors (see below), whose sum is σ = 124445856. Its totient is φ = 40956552.

The previous prime is 82438501. The next prime is 82438507. The reversal of 82438502 is 20583428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×82438502² = 13592213224008008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82438501) 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, 130958 + ... + 131585.

It is an arithmetic number, because the mean of its divisors is an integer number (15555732).

Almost surely, 2^82438502 is an apocalyptic number.

82438502 is a deficient number, since it is larger than the sum of its proper divisors (42007354).

82438502 is a wasteful number, since it uses less digits than its factorization.

82438502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262702.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 82438502 is about 9079.5650776896. The cubic root of 82438502 is about 435.2211884317.

The spelling of 82438502 in words is "eighty-two million, four hundred thirty-eight thousand, five hundred two".