42345286 has 4 divisors (see below), whose sum is σ = 63517932. Its totient is φ = 21172642.

The previous prime is 42345269. The next prime is 42345311. The reversal of 42345286 is 68254324.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10586320 + ... + 10586323.

It is an arithmetic number, because the mean of its divisors is an integer number (15879483).

Almost surely, 2^42345286 is an apocalyptic number.

42345286 is a deficient number, since it is larger than the sum of its proper divisors (21172646).

42345286 is a wasteful number, since it uses less digits than its factorization.

42345286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21172645.

The product of its digits is 46080, while the sum is 34.

The square root of 42345286 is about 6507.3255643160. The cubic root of 42345286 is about 348.5526241919.

The spelling of 42345286 in words is "forty-two million, three hundred forty-five thousand, two hundred eighty-six".