42457342 has 8 divisors (see below), whose sum is σ = 64730232. Its totient is φ = 20880600.

The previous prime is 42457339. The next prime is 42457357. The reversal of 42457342 is 24375424.

It is a happy number.

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

It is a congruent 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, 173884 + ... + 174127.

It is an arithmetic number, because the mean of its divisors is an integer number (8091279).

Almost surely, 2^42457342 is an apocalyptic number.

42457342 is a deficient number, since it is larger than the sum of its proper divisors (22272890).

42457342 is a wasteful number, since it uses less digits than its factorization.

42457342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348074.

The product of its digits is 26880, while the sum is 31.

The square root of 42457342 is about 6515.9298645704. The cubic root of 42457342 is about 348.8598052682.

The spelling of 42457342 in words is "forty-two million, four hundred fifty-seven thousand, three hundred forty-two".