420115050 has 72 divisors (see below), whose sum is σ = 1195125516. Its totient is φ = 105438720.

The previous prime is 420115049. The next prime is 420115081. The reversal of 420115050 is 50511024.

It can be written as a sum of positive squares in 6 ways, for example, as 180391761 + 239723289 = 13431^2 + 15483^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 35 ways as a sum of consecutive naturals, for example, 19809 + ... + 35108.

Almost surely, 2^420115050 is an apocalyptic number.

420115050 is an abundant number, since it is smaller than the sum of its proper divisors (775010466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420115050 is a wasteful number, since it uses less digits than its factorization.

420115050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54952 (or 54944 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 420115050 is about 20496.7082723056. The cubic root of 420115050 is about 748.9556130162.

Adding to 420115050 its reverse (50511024), we get a palindrome (470626074).

The spelling of 420115050 in words is "four hundred twenty million, one hundred fifteen thousand, fifty".