42188554 has 8 divisors (see below), whose sum is σ = 63489888. Its totient is φ = 21025260.

The previous prime is 42188539. The next prime is 42188557. The reversal of 42188554 is 45588124.

42188554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×42188554² = 3559748177221832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42188557) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33742 + ... + 34969.

It is an arithmetic number, because the mean of its divisors is an integer number (7936236).

Almost surely, 2^42188554 is an apocalyptic number.

42188554 is a deficient number, since it is larger than the sum of its proper divisors (21301334).

42188554 is a wasteful number, since it uses less digits than its factorization.

42188554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69020.

The product of its digits is 51200, while the sum is 37.

The square root of 42188554 is about 6495.2716648344. The cubic root of 42188554 is about 348.1220615988.

The spelling of 42188554 in words is "forty-two million, one hundred eighty-eight thousand, five hundred fifty-four".