42090050 has 12 divisors (see below), whose sum is σ = 78287586. Its totient is φ = 16836000.

The previous prime is 42090043. The next prime is 42090071. The reversal of 42090050 is 5009024.

It can be written as a sum of positive squares in 3 ways, for example, as 34210801 + 7879249 = 5849^2 + 2807^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420851 + ... + 420950.

Almost surely, 2^42090050 is an apocalyptic number.

42090050 is a deficient number, since it is larger than the sum of its proper divisors (36197536).

42090050 is a wasteful number, since it uses less digits than its factorization.

42090050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841813 (or 841808 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 42090050 is about 6487.6844867795. The cubic root of 42090050 is about 347.8509127095.

Adding to 42090050 its reverse (5009024), we get a palindrome (47099074).

The spelling of 42090050 in words is "forty-two million, ninety thousand, fifty".