234440413 has 2 divisors, whose sum is σ = 234440414. Its totient is φ = 234440412.

The previous prime is 234440377. The next prime is 234440461. The reversal of 234440413 is 314044432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206583129 + 27857284 = 14373^2 + 5278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234440413 is a prime.

It is a super-2 number, since 2×234440413² = 109924614495221138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234440483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117220206 + 117220207.

It is an arithmetic number, because the mean of its divisors is an integer number (117220207).

Almost surely, 2^234440413 is an apocalyptic number.

It is an amenable number.

234440413 is a deficient number, since it is larger than the sum of its proper divisors (1).

234440413 is an equidigital number, since it uses as much as digits as its factorization.

234440413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 234440413 is about 15311.4471229861. The cubic root of 234440413 is about 616.6103722980.

Adding to 234440413 its reverse (314044432), we get a palindrome (548484845).

The spelling of 234440413 in words is "two hundred thirty-four million, four hundred forty thousand, four hundred thirteen".