239411421 has 6 divisors (see below), whose sum is σ = 345816510. Its totient is φ = 159607608.

The previous prime is 239411399. The next prime is 239411437. The reversal of 239411421 is 124114932.

It is a happy number.

239411421 is a `hidden beast` number, since 239 + 4 + 1 + 1 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 189200025 + 50211396 = 13755^2 + 7086^2 .

It is not a de Polignac number, because 239411421 - 2¹⁰ = 239410397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239411021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13300626 + ... + 13300643.

It is an arithmetic number, because the mean of its divisors is an integer number (57636085).

Almost surely, 2^239411421 is an apocalyptic number.

It is an amenable number.

239411421 is a deficient number, since it is larger than the sum of its proper divisors (106405089).

239411421 is a wasteful number, since it uses less digits than its factorization.

239411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26601275 (or 26601272 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 239411421 is about 15472.9254182911. The cubic root of 239411421 is about 620.9380709479.

The spelling of 239411421 in words is "two hundred thirty-nine million, four hundred eleven thousand, four hundred twenty-one".