430128250 has 16 divisors (see below), whose sum is σ = 805200552. Its totient is φ = 172051200.

The previous prime is 430128247. The next prime is 430128287. The reversal of 430128250 is 52821034.

It can be written as a sum of positive squares in 4 ways, for example, as 13845841 + 416282409 = 3721^2 + 20403^2 .

It is a super-2 number, since 2×430128250² = 370020622896125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860007 + ... + 860506.

Almost surely, 2^430128250 is an apocalyptic number.

430128250 is a deficient number, since it is larger than the sum of its proper divisors (375072302).

430128250 is a wasteful number, since it uses less digits than its factorization.

430128250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720530 (or 1720520 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 430128250 is about 20739.5335048790. The cubic root of 430128250 is about 754.8592635648.

Adding to 430128250 its reverse (52821034), we get a palindrome (482949284).

The spelling of 430128250 in words is "four hundred thirty million, one hundred twenty-eight thousand, two hundred fifty".