42961418 has 16 divisors (see below), whose sum is σ = 65197440. Its totient is φ = 21230736.

The previous prime is 42961417. The next prime is 42961427. The reversal of 42961418 is 81416924.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42961417) 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 7 ways as a sum of consecutive naturals, for example, 97643 + ... + 98081.

It is an arithmetic number, because the mean of its divisors is an integer number (4074840).

Almost surely, 2^42961418 is an apocalyptic number.

42961418 is a deficient number, since it is larger than the sum of its proper divisors (22236022).

42961418 is a wasteful number, since it uses less digits than its factorization.

42961418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its digits is 13824, while the sum is 35.

The square root of 42961418 is about 6554.4960141875. The cubic root of 42961418 is about 350.2349932085.

The spelling of 42961418 in words is "forty-two million, nine hundred sixty-one thousand, four hundred eighteen".