42242244 has 48 divisors (see below), whose sum is σ = 113191680. Its totient is φ = 12126240.

The previous prime is 42242173. The next prime is 42242251. The reversal of 42242244 is 44224224.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5914 + ... + 10929.

It is an arithmetic number, because the mean of its divisors is an integer number (2358160).

Almost surely, 2^42242244 is an apocalyptic number.

42242244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42242244 is an abundant number, since it is smaller than the sum of its proper divisors (70949436).

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

42242244 is a wasteful number, since it uses less digits than its factorization.

42242244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16880 (or 16878 counting only the distinct ones).

The product of its digits is 4096, while the sum is 24.

The square root of 42242244 is about 6499.4033572321. The cubic root of 42242244 is about 348.2696747040.

Adding to 42242244 its reverse (44224224), we get a palindrome (86466468).

It can be divided in two parts, 42242 and 244, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 42242244 in words is "forty-two million, two hundred forty-two thousand, two hundred forty-four".