4318932421 has 2 divisors, whose sum is σ = 4318932422. Its totient is φ = 4318932420.

The previous prime is 4318932403. The next prime is 4318932439. The reversal of 4318932421 is 1242398134.

It is the 26830-th star number.

It is a balanced prime because it is at equal distance from previous prime (4318932403) and next prime (4318932439).

It can be written as a sum of positive squares in only one way, i.e., 3743604225 + 575328196 = 61185^2 + 23986^2 .

It is a cyclic number.

It is not a de Polignac number, because 4318932421 - 2¹¹ = 4318930373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4318932461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159466210 + 2159466211.

It is an arithmetic number, because the mean of its divisors is an integer number (2159466211).

Almost surely, 2^4318932421 is an apocalyptic number.

It is an amenable number.

4318932421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4318932421 is an equidigital number, since it uses as much as digits as its factorization.

4318932421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 4318932421 is about 65718.5850501972. The cubic root of 4318932421 is about 1628.5163989390.

The spelling of 4318932421 in words is "four billion, three hundred eighteen million, nine hundred thirty-two thousand, four hundred twenty-one".