42455442 has 8 divisors (see below), whose sum is σ = 84910896. Its totient is φ = 14151812.

The previous prime is 42455423. The next prime is 42455471. The reversal of 42455442 is 24455424.

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

42455442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537948 + ... + 3537959.

It is an arithmetic number, because the mean of its divisors is an integer number (10613862).

Almost surely, 2^42455442 is an apocalyptic number.

42455442 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.

42455442 is a wasteful number, since it uses less digits than its factorization.

42455442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075912.

The product of its digits is 25600, while the sum is 30.

The square root of 42455442 is about 6515.7840664037. The cubic root of 42455442 is about 348.8546012722.

The spelling of 42455442 in words is "forty-two million, four hundred fifty-five thousand, four hundred forty-two".