82049438 has 12 divisors (see below), whose sum is σ = 123899712. Its totient is φ = 40751340.

The previous prime is 82049411. The next prime is 82049447. The reversal of 82049438 is 83494028.

It is a super-2 number, since 2×82049438² = 13464220552231688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55043 + ... + 56513.

It is an arithmetic number, because the mean of its divisors is an integer number (10324976).

Almost surely, 2^82049438 is an apocalyptic number.

82049438 is a deficient number, since it is larger than the sum of its proper divisors (41850274).

82049438 is a wasteful number, since it uses less digits than its factorization.

82049438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 82049438 is about 9058.1144837102. The cubic root of 82049438 is about 434.5354409857.

The spelling of 82049438 in words is "eighty-two million, forty-nine thousand, four hundred thirty-eight".