366949381 has 2 divisors, whose sum is σ = 366949382. Its totient is φ = 366949380.

The previous prime is 366949361. The next prime is 366949393. The reversal of 366949381 is 183949663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287133025 + 79816356 = 16945^2 + 8934^2 .

It is a cyclic number.

It is not a de Polignac number, because 366949381 - 2¹¹ = 366947333 is a prime.

It is a super-2 number, since 2×366949381² = 269303696432566322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366949321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183474690 + 183474691.

It is an arithmetic number, because the mean of its divisors is an integer number (183474691).

Almost surely, 2^366949381 is an apocalyptic number.

It is an amenable number.

366949381 is a deficient number, since it is larger than the sum of its proper divisors (1).

366949381 is an equidigital number, since it uses as much as digits as its factorization.

366949381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 366949381 is about 19155.9228699637. The cubic root of 366949381 is about 715.9269643728.

The spelling of 366949381 in words is "three hundred sixty-six million, nine hundred forty-nine thousand, three hundred eighty-one".