42516670 has 32 divisors (see below), whose sum is σ = 89330688. Its totient is φ = 14265888.

The previous prime is 42516641. The next prime is 42516671. The reversal of 42516670 is 7661524.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42516671) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3172 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (2791584).

Almost surely, 2^42516670 is an apocalyptic number.

42516670 is an abundant number, since it is smaller than the sum of its proper divisors (46814018).

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

42516670 is a wasteful number, since it uses less digits than its factorization.

42516670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 42516670 is about 6520.4808104924. The cubic root of 42516670 is about 349.0222233613.

The spelling of 42516670 in words is "forty-two million, five hundred sixteen thousand, six hundred seventy".