338928089 has 2 divisors, whose sum is σ = 338928090. Its totient is φ = 338928088.

The previous prime is 338928049. The next prime is 338928101. The reversal of 338928089 is 980829833.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201640000 + 137288089 = 14200^2 + 11717^2 .

It is a cyclic number.

It is not a de Polignac number, because 338928089 - 2¹² = 338923993 is a prime.

It is a super-2 number, since 2×338928089² = 229744499026383842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338928049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169464044 + 169464045.

It is an arithmetic number, because the mean of its divisors is an integer number (169464045).

Almost surely, 2^338928089 is an apocalyptic number.

It is an amenable number.

338928089 is a deficient number, since it is larger than the sum of its proper divisors (1).

338928089 is an equidigital number, since it uses as much as digits as its factorization.

338928089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 338928089 is about 18409.9997012493. Note that the first 3 decimals coincide. The cubic root of 338928089 is about 697.2189583020.

The spelling of 338928089 in words is "three hundred thirty-eight million, nine hundred twenty-eight thousand, eighty-nine".