10042742 has 8 divisors (see below), whose sum is σ = 15105000. Its totient is φ = 5007744.

The previous prime is 10042741. The next prime is 10042757. The reversal of 10042742 is 24724001.

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 (10042741) 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, 5867 + ... + 7382.

It is an arithmetic number, because the mean of its divisors is an integer number (1888125).

Almost surely, 2^10042742 is an apocalyptic number.

10042742 is a deficient number, since it is larger than the sum of its proper divisors (5062258).

10042742 is a wasteful number, since it uses less digits than its factorization.

10042742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 10042742 is about 3169.0285577760. The cubic root of 10042742 is about 215.7499822092.

Adding to 10042742 its reverse (24724001), we get a palindrome (34766743).

The spelling of 10042742 in words is "ten million, forty-two thousand, seven hundred forty-two".