42089444 has 24 divisors (see below), whose sum is σ = 76462848. Its totient is φ = 20250720.

The previous prime is 42089441. The next prime is 42089447. The reversal of 42089444 is 44498024.

It is an interprime number because it is at equal distance from previous prime (42089441) and next prime (42089447).

It is not an unprimeable number, because it can be changed into a prime (42089441) 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, 23567 + ... + 25289.

It is an arithmetic number, because the mean of its divisors is an integer number (3185952).

Almost surely, 2^42089444 is an apocalyptic number.

It is an amenable number.

42089444 is a deficient number, since it is larger than the sum of its proper divisors (34373404).

42089444 is a wasteful number, since it uses less digits than its factorization.

42089444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955 (or 1953 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 42089444 is about 6487.6377827373. The cubic root of 42089444 is about 347.8492432835.

The spelling of 42089444 in words is "forty-two million, eighty-nine thousand, four hundred forty-four".