381364949 has 16 divisors (see below), whose sum is σ = 441302400. Its totient is φ = 322812864.

The previous prime is 381364939. The next prime is 381364981. The reversal of 381364949 is 949463183.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 381364949 - 2⁸ = 381364693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381364939) 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 15 ways as a sum of consecutive naturals, for example, 302282 + ... + 303540.

It is an arithmetic number, because the mean of its divisors is an integer number (27581400).

Almost surely, 2^381364949 is an apocalyptic number.

It is an amenable number.

381364949 is a deficient number, since it is larger than the sum of its proper divisors (59937451).

381364949 is a wasteful number, since it uses less digits than its factorization.

381364949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772.

The product of its digits is 559872, while the sum is 47.

The square root of 381364949 is about 19528.5675101888. The cubic root of 381364949 is about 725.1818483198.

The spelling of 381364949 in words is "three hundred eighty-one million, three hundred sixty-four thousand, nine hundred forty-nine".