234005399 has 4 divisors (see below), whose sum is σ = 234036264. Its totient is φ = 233974536.

The previous prime is 234005393. The next prime is 234005407. The reversal of 234005399 is 993500432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234005399 is a prime.

It is a super-2 number, since 2×234005399² = 109517053522298402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234005393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664 + ... + 22130.

It is an arithmetic number, because the mean of its divisors is an integer number (58509066).

Almost surely, 2^234005399 is an apocalyptic number.

234005399 is a deficient number, since it is larger than the sum of its proper divisors (30865).

234005399 is a wasteful number, since it uses less digits than its factorization.

234005399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30864.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 234005399 is about 15297.2350115960. The cubic root of 234005399 is about 616.2287540454.

The spelling of 234005399 in words is "two hundred thirty-four million, five thousand, three hundred ninety-nine".