420434950 has 24 divisors (see below), whose sum is σ = 842164848. Its totient is φ = 155237280.

The previous prime is 420434947. The next prime is 420434969. The reversal of 420434950 is 59434024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322762 + ... + 324061.

It is an arithmetic number, because the mean of its divisors is an integer number (35090202).

Almost surely, 2^420434950 is an apocalyptic number.

420434950 is an abundant number, since it is smaller than the sum of its proper divisors (421729898).

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

420434950 is a wasteful number, since it uses less digits than its factorization.

420434950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646848 (or 646843 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 420434950 is about 20504.5104794043. The cubic root of 420434950 is about 749.1456642204.

Adding to 420434950 its reverse (59434024), we get a palindrome (479868974).

The spelling of 420434950 in words is "four hundred twenty million, four hundred thirty-four thousand, nine hundred fifty".