334430981 has 2 divisors, whose sum is σ = 334430982. Its totient is φ = 334430980.

The previous prime is 334430959. The next prime is 334430983. The reversal of 334430981 is 189034433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314494756 + 19936225 = 17734^2 + 4465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-334430981 is a prime.

It is a super-2 number, since 2×334430981² = 223688162105244722, which contains 22 as substring.

Together with 334430983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334430983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167215490 + 167215491.

It is an arithmetic number, because the mean of its divisors is an integer number (167215491).

Almost surely, 2^334430981 is an apocalyptic number.

It is an amenable number.

334430981 is a deficient number, since it is larger than the sum of its proper divisors (1).

334430981 is an equidigital number, since it uses as much as digits as its factorization.

334430981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 334430981 is about 18287.4541967984. The cubic root of 334430981 is about 694.1215068778.

The spelling of 334430981 in words is "three hundred thirty-four million, four hundred thirty thousand, nine hundred eighty-one".