421050242 has 4 divisors (see below), whose sum is σ = 631575366. Its totient is φ = 210525120.

The previous prime is 421050239. The next prime is 421050263. The reversal of 421050242 is 242050124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 337126321 + 83923921 = 18361^2 + 9161^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105262559 + ... + 105262562.

Almost surely, 2^421050242 is an apocalyptic number.

421050242 is a deficient number, since it is larger than the sum of its proper divisors (210525124).

421050242 is a wasteful number, since it uses less digits than its factorization.

421050242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210525123.

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

The square root of 421050242 is about 20519.5088147840. The cubic root of 421050242 is about 749.5109356760.

The spelling of 421050242 in words is "four hundred twenty-one million, fifty thousand, two hundred forty-two".