42122450 has 12 divisors (see below), whose sum is σ = 78347850. Its totient is φ = 16848960.

The previous prime is 42122429. The next prime is 42122461. The reversal of 42122450 is 5422124.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21501769 + 20620681 = 4637^2 + 4541^2 .

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, 421175 + ... + 421274.

Almost surely, 2^42122450 is an apocalyptic number.

42122450 is a deficient number, since it is larger than the sum of its proper divisors (36225400).

42122450 is a wasteful number, since it uses less digits than its factorization.

42122450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842461 (or 842456 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42122450 is about 6490.1810452406. The cubic root of 42122450 is about 347.9401458252.

Adding to 42122450 its reverse (5422124), we get a palindrome (47544574).

The spelling of 42122450 in words is "forty-two million, one hundred twenty-two thousand, four hundred fifty".