8038642 has 8 divisors (see below), whose sum is σ = 12077100. Its totient is φ = 4012944.

The previous prime is 8038631. The next prime is 8038649. The reversal of 8038642 is 2468308.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7134241 + 904401 = 2671^2 + 951^2 .

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

It is not an unprimeable number, because it can be changed into a prime (8038649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 4252.

Almost surely, 2^8038642 is an apocalyptic number.

8038642 is the 1418-th decagonal number.

8038642 is a deficient number, since it is larger than the sum of its proper divisors (4038458).

8038642 is a wasteful number, since it uses less digits than its factorization.

8038642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8038642 is about 2835.2499008024. The cubic root of 8038642 is about 200.3214995798.

The spelling of 8038642 in words is "eight million, thirty-eight thousand, six hundred forty-two".