42345786 has 16 divisors (see below), whose sum is σ = 96790464. Its totient is φ = 12098784.

The previous prime is 42345763. The next prime is 42345791. The reversal of 42345786 is 68754324.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504075 + ... + 504158.

It is an arithmetic number, because the mean of its divisors is an integer number (6049404).

Almost surely, 2^42345786 is an apocalyptic number.

42345786 is an abundant number, since it is smaller than the sum of its proper divisors (54444678).

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

42345786 is a wasteful number, since it uses less digits than its factorization.

42345786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008245.

The product of its digits is 161280, while the sum is 39.

The square root of 42345786 is about 6507.3639824433. The cubic root of 42345786 is about 348.5539960536.

The spelling of 42345786 in words is "forty-two million, three hundred forty-five thousand, seven hundred eighty-six".