42448218 has 16 divisors (see below), whose sum is σ = 89890560. Its totient is φ = 13317056.

The previous prime is 42448187. The next prime is 42448279. The reversal of 42448218 is 81284424.

It is a super-2 number, since 2×42448218² = 3603702422751048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207978 + ... + 208181.

It is an arithmetic number, because the mean of its divisors is an integer number (5618160).

Almost surely, 2^42448218 is an apocalyptic number.

42448218 is an abundant number, since it is smaller than the sum of its proper divisors (47442342).

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

42448218 is a wasteful number, since it uses less digits than its factorization.

42448218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416181.

The product of its digits is 16384, while the sum is 33.

The square root of 42448218 is about 6515.2296966416. The cubic root of 42448218 is about 348.8348137140.

The spelling of 42448218 in words is "forty-two million, four hundred forty-eight thousand, two hundred eighteen".