234904381 has 2 divisors, whose sum is σ = 234904382. Its totient is φ = 234904380.

The previous prime is 234904337. The next prime is 234904403. The reversal of 234904381 is 183409432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208802500 + 26101881 = 14450^2 + 5109^2 .

It is a cyclic number.

It is not a de Polignac number, because 234904381 - 2¹⁷ = 234773309 is a prime.

It is a super-2 number, since 2×234904381² = 110360136425986322, which contains 22 as substring.

It is equal to p_12897070 and since 234904381 and 12897070 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234904781) 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 as a sum of consecutive naturals, namely, 117452190 + 117452191.

It is an arithmetic number, because the mean of its divisors is an integer number (117452191).

Almost surely, 2^234904381 is an apocalyptic number.

It is an amenable number.

234904381 is a deficient number, since it is larger than the sum of its proper divisors (1).

234904381 is an equidigital number, since it uses as much as digits as its factorization.

234904381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 234904381 is about 15326.5906515441. The cubic root of 234904381 is about 617.0168707030.

The spelling of 234904381 in words is "two hundred thirty-four million, nine hundred four thousand, three hundred eighty-one".