7638142 has 8 divisors (see below), whose sum is σ = 11498832. Its totient is φ = 3805200.

The previous prime is 7638089. The next prime is 7638143. The reversal of 7638142 is 2418367.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7638143) 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, 6234 + ... + 7357.

It is an arithmetic number, because the mean of its divisors is an integer number (1437354).

Almost surely, 2^7638142 is an apocalyptic number.

7638142 is a deficient number, since it is larger than the sum of its proper divisors (3860690).

7638142 is a wasteful number, since it uses less digits than its factorization.

7638142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13874.

The product of its digits is 8064, while the sum is 31.

The square root of 7638142 is about 2763.7188713760. The cubic root of 7638142 is about 196.9378728225.

The spelling of 7638142 in words is "seven million, six hundred thirty-eight thousand, one hundred forty-two".