42250444 has 12 divisors (see below), whose sum is σ = 74352600. Its totient is φ = 21006848.

The previous prime is 42250409. The next prime is 42250447. The reversal of 42250444 is 44405224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42250447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28789 + ... + 30220.

It is an arithmetic number, because the mean of its divisors is an integer number (6196050).

Almost surely, 2^42250444 is an apocalyptic number.

It is an amenable number.

42250444 is a deficient number, since it is larger than the sum of its proper divisors (32102156).

42250444 is a wasteful number, since it uses less digits than its factorization.

42250444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59192 (or 59190 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 42250444 is about 6500.0341537564. The cubic root of 42250444 is about 348.2922084388.

Adding to 42250444 its reverse (44405224), we get a palindrome (86655668).

The spelling of 42250444 in words is "forty-two million, two hundred fifty thousand, four hundred forty-four".