42136742 has 8 divisors (see below), whose sum is σ = 63489216. Its totient is φ = 20973672.

The previous prime is 42136741. The next prime is 42136763. The reversal of 42136742 is 24763124.

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 (42136741) 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, 46793 + ... + 47684.

It is an arithmetic number, because the mean of its divisors is an integer number (7936152).

Almost surely, 2^42136742 is an apocalyptic number.

42136742 is a deficient number, since it is larger than the sum of its proper divisors (21352474).

42136742 is a wasteful number, since it uses less digits than its factorization.

42136742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94702.

The product of its digits is 8064, while the sum is 29.

The square root of 42136742 is about 6491.2819997286. The cubic root of 42136742 is about 347.9794930004.

Adding to 42136742 its reverse (24763124), we get a palindrome (66899866).

The spelling of 42136742 in words is "forty-two million, one hundred thirty-six thousand, seven hundred forty-two".