430780882921 has 9 divisors (see below), whose sum is σ = 432083700183. Its totient is φ = 429481988040.

The previous prime is 430780882859. The next prime is 430780882937. The reversal of 430780882921 is 129288087034.

It is a happy number.

The square root of 430780882921 is 656339.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2044034521 + 428736848400 = 45211^2 + 654780^2 .

It is not a de Polignac number, because 430780882921 - 2²¹ = 430778785769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430780882621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 276317940 + ... + 276319498.

Almost surely, 2^430780882921 is an apocalyptic number.

430780882921 is the 656339-th square number.

430780882921 is the 328170-th centered octagonal number.

It is an amenable number.

430780882921 is a deficient number, since it is larger than the sum of its proper divisors (1302817262).

430780882921 is an frugal number, since it uses more digits than its factorization.

430780882921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 430780882921 in words is "four hundred thirty billion, seven hundred eighty million, eight hundred eighty-two thousand, nine hundred twenty-one".