162042638 has 8 divisors (see below), whose sum is σ = 243120360. Its totient is φ = 81002520.

The previous prime is 162042637. The next prime is 162042653. The reversal of 162042638 is 836240261.

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 (162042637) 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, 7328 + ... + 19436.

It is an arithmetic number, because the mean of its divisors is an integer number (30390045).

Almost surely, 2^162042638 is an apocalyptic number.

162042638 is a deficient number, since it is larger than the sum of its proper divisors (81077722).

162042638 is a wasteful number, since it uses less digits than its factorization.

162042638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 162042638 is about 12729.5969299896. The cubic root of 162042638 is about 545.1839998197.

Adding to 162042638 its reverse (836240261), we get a palindrome (998282899).

The spelling of 162042638 in words is "one hundred sixty-two million, forty-two thousand, six hundred thirty-eight".