42349218 has 16 divisors (see below), whose sum is σ = 85139616. Its totient is φ = 14042880.

The previous prime is 42349217. The next prime is 42349249. The reversal of 42349218 is 81294324.

It is not an unprimeable number, because it can be changed into a prime (42349211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17128 + ... + 19443.

It is an arithmetic number, because the mean of its divisors is an integer number (5321226).

Almost surely, 2^42349218 is an apocalyptic number.

42349218 is an abundant number, since it is smaller than the sum of its proper divisors (42790398).

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

42349218 is a wasteful number, since it uses less digits than its factorization.

42349218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36769.

The product of its digits is 13824, while the sum is 33.

The square root of 42349218 is about 6507.6276783479. The cubic root of 42349218 is about 348.5634122208.

The spelling of 42349218 in words is "forty-two million, three hundred forty-nine thousand, two hundred eighteen".