42178254 has 8 divisors (see below), whose sum is σ = 84356520. Its totient is φ = 14059416.

The previous prime is 42178247. The next prime is 42178277. The reversal of 42178254 is 45287124.

42178254 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.

42178254 is an admirable number.

It is a super-2 number, since 2×42178254² = 3558010220977032, which contains 22 as substring.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3514849 + ... + 3514860.

It is an arithmetic number, because the mean of its divisors is an integer number (10544565).

Almost surely, 2^42178254 is an apocalyptic number.

42178254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42178254 is a wasteful number, since it uses less digits than its factorization.

42178254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029714.

The product of its digits is 17920, while the sum is 33.

The square root of 42178254 is about 6494.4787319692. The cubic root of 42178254 is about 348.0937288819.

The spelling of 42178254 in words is "forty-two million, one hundred seventy-eight thousand, two hundred fifty-four".