420045050 has 12 divisors (see below), whose sum is σ = 781283886. Its totient is φ = 168018000.

The previous prime is 420045011. The next prime is 420045091. The reversal of 420045050 is 50540024.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 151314601 + 268730449 = 12301^2 + 16393^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 4200401 + ... + 4200500.

Almost surely, 2^420045050 is an apocalyptic number.

420045050 is a deficient number, since it is larger than the sum of its proper divisors (361238836).

420045050 is a wasteful number, since it uses less digits than its factorization.

420045050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400913 (or 8400908 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 420045050 is about 20495.0006099048. Note that the first 3 decimals coincide. The cubic root of 420045050 is about 748.9140134551.

Adding to 420045050 its reverse (50540024), we get a palindrome (470585074).

The spelling of 420045050 in words is "four hundred twenty million, forty-five thousand, fifty".