42440054 has 16 divisors (see below), whose sum is σ = 67246080. Its totient is φ = 20056680.

The previous prime is 42440051. The next prime is 42440059. The reversal of 42440054 is 45004424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440051) 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, 5294 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (4202880).

Almost surely, 2^42440054 is an apocalyptic number.

42440054 is a deficient number, since it is larger than the sum of its proper divisors (24806026).

42440054 is a wasteful number, since it uses less digits than its factorization.

42440054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15995.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 42440054 is about 6514.6031344971. The cubic root of 42440054 is about 348.8124486604.

Adding to 42440054 its reverse (45004424), we get a palindrome (87444478).

The spelling of 42440054 in words is "forty-two million, four hundred forty thousand, fifty-four".