42154042 has 8 divisors (see below), whose sum is σ = 72264096. Its totient is φ = 18066012.

The previous prime is 42154031. The next prime is 42154043. The reversal of 42154042 is 24045124.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (42154043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505488 + ... + 1505515.

It is an arithmetic number, because the mean of its divisors is an integer number (9033012).

Almost surely, 2^42154042 is an apocalyptic number.

42154042 is a deficient number, since it is larger than the sum of its proper divisors (30110054).

42154042 is a wasteful number, since it uses less digits than its factorization.

42154042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011012.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42154042 is about 6492.6144194769. The cubic root of 42154042 is about 348.0271095717.

Adding to 42154042 its reverse (24045124), we get a palindrome (66199166).

It can be divided in two parts, 4 and 2154042, that multiplied together give a palindrome (8616168).

The spelling of 42154042 in words is "forty-two million, one hundred fifty-four thousand, forty-two".