42157346 has 24 divisors (see below), whose sum is σ = 80249616. Its totient is φ = 16424520.

The previous prime is 42157343. The next prime is 42157361. The reversal of 42157346 is 64375124.

It is not an unprimeable number, because it can be changed into a prime (42157343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18476 + ... + 20631.

It is an arithmetic number, because the mean of its divisors is an integer number (3343734).

Almost surely, 2^42157346 is an apocalyptic number.

42157346 is a deficient number, since it is larger than the sum of its proper divisors (38092270).

42157346 is a wasteful number, since it uses less digits than its factorization.

42157346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39134 (or 39127 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 42157346 is about 6492.8688574466. The cubic root of 42157346 is about 348.0362020294.

The spelling of 42157346 in words is "forty-two million, one hundred fifty-seven thousand, three hundred forty-six".