42343844 has 12 divisors (see below), whose sum is σ = 74188800. Its totient is φ = 21147048.

The previous prime is 42343831. The next prime is 42343849. The reversal of 42343844 is 44834324.

It is a super-2 number, since 2×42343844² = 3586002249392672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42343844.

It is not an unprimeable number, because it can be changed into a prime (42343849) 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 3 ways as a sum of consecutive naturals, for example, 2084 + ... + 9435.

It is an arithmetic number, because the mean of its divisors is an integer number (6182400).

Almost surely, 2^42343844 is an apocalyptic number.

It is an amenable number.

42343844 is a deficient number, since it is larger than the sum of its proper divisors (31844956).

42343844 is a wasteful number, since it uses less digits than its factorization.

42343844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12442 (or 12440 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 42343844 is about 6507.2147651664. The cubic root of 42343844 is about 348.5486676824.

The spelling of 42343844 in words is "forty-two million, three hundred forty-three thousand, eight hundred forty-four".