42336542 has 4 divisors (see below), whose sum is σ = 63504816. Its totient is φ = 21168270.

The previous prime is 42336533. The next prime is 42336587. The reversal of 42336542 is 24563324.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10584134 + ... + 10584137.

It is an arithmetic number, because the mean of its divisors is an integer number (15876204).

Almost surely, 2^42336542 is an apocalyptic number.

42336542 is a deficient number, since it is larger than the sum of its proper divisors (21168274).

42336542 is a wasteful number, since it uses less digits than its factorization.

42336542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21168273.

The product of its digits is 17280, while the sum is 29.

The square root of 42336542 is about 6506.6536714351. The cubic root of 42336542 is about 348.5286313288.

Adding to 42336542 its reverse (24563324), we get a palindrome (66899866).

The spelling of 42336542 in words is "forty-two million, three hundred thirty-six thousand, five hundred forty-two".