42246918 has 72 divisors (see below), whose sum is σ = 112128120. Its totient is φ = 11430720.

The previous prime is 42246889. The next prime is 42246949. The reversal of 42246918 is 81964224.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15498 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (1557335).

Almost surely, 2^42246918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42246918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56064060).

42246918 is an abundant number, since it is smaller than the sum of its proper divisors (69881202).

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

42246918 is a wasteful number, since it uses less digits than its factorization.

42246918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2552 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 42246918 is about 6499.7629187533. The cubic root of 42246918 is about 348.2825192902.

The spelling of 42246918 in words is "forty-two million, two hundred forty-six thousand, nine hundred eighteen".