42154566 has 16 divisors (see below), whose sum is σ = 84417600. Its totient is φ = 14033448.

The previous prime is 42154547. The next prime is 42154573. The reversal of 42154566 is 66545124.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1065 + ... + 9243.

It is an arithmetic number, because the mean of its divisors is an integer number (5276100).

Almost surely, 2^42154566 is an apocalyptic number.

42154566 is an abundant number, since it is smaller than the sum of its proper divisors (42263034).

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

42154566 is a wasteful number, since it uses less digits than its factorization.

42154566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043.

The product of its digits is 28800, while the sum is 33.

The square root of 42154566 is about 6492.6547728953. The cubic root of 42154566 is about 348.0285516276.

The spelling of 42154566 in words is "forty-two million, one hundred fifty-four thousand, five hundred sixty-six".