42154686 has 24 divisors (see below), whose sum is σ = 104383344. Its totient is φ = 12044160.

The previous prime is 42154681. The next prime is 42154687. The reversal of 42154686 is 68645124.

It is a self number, because there is not a number n which added to its sum of digits gives 42154686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167155 + ... + 167406.

It is an arithmetic number, because the mean of its divisors is an integer number (4349306).

Almost surely, 2^42154686 is an apocalyptic number.

42154686 is an abundant number, since it is smaller than the sum of its proper divisors (62228658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42154686 is a wasteful number, since it uses less digits than its factorization.

42154686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334576 (or 334573 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 42154686 is about 6492.6640141008. The cubic root of 42154686 is about 348.0288818677.

The spelling of 42154686 in words is "forty-two million, one hundred fifty-four thousand, six hundred eighty-six".