421030450 has 24 divisors (see below), whose sum is σ = 783814788. Its totient is φ = 168262080.

The previous prime is 421030447. The next prime is 421030453. The reversal of 421030450 is 54030124.

It is an interprime number because it is at equal distance from previous prime (421030447) and next prime (421030453).

It can be written as a sum of positive squares in 6 ways, for example, as 387656721 + 33373729 = 19689^2 + 5777^2 .

It is not an unprimeable number, because it can be changed into a prime (421030453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65584 + ... + 71716.

Almost surely, 2^421030450 is an apocalyptic number.

421030450 is a deficient number, since it is larger than the sum of its proper divisors (362784338).

421030450 is a wasteful number, since it uses less digits than its factorization.

421030450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518 (or 7513 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 421030450 is about 20519.0265363638. The cubic root of 421030450 is about 749.4991915883.

Adding to 421030450 its reverse (54030124), we get a palindrome (475060574).

The spelling of 421030450 in words is "four hundred twenty-one million, thirty thousand, four hundred fifty".