42187654 has 16 divisors (see below), whose sum is σ = 63971136. Its totient is φ = 20865600.

The previous prime is 42187637. The next prime is 42187669. The reversal of 42187654 is 45678124.

42187654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149994 + ... + 150274.

It is an arithmetic number, because the mean of its divisors is an integer number (3998196).

Almost surely, 2^42187654 is an apocalyptic number.

42187654 is a deficient number, since it is larger than the sum of its proper divisors (21783482).

42187654 is a wasteful number, since it uses less digits than its factorization.

42187654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its digits is 53760, while the sum is 37.

The square root of 42187654 is about 6495.2023832980. The cubic root of 42187654 is about 348.1195861084.

The spelling of 42187654 in words is "forty-two million, one hundred eighty-seven thousand, six hundred fifty-four".