381759049 has 6 divisors (see below), whose sum is σ = 444087114. Its totient is φ = 327222000.

The previous prime is 381759043. The next prime is 381759073. The reversal of 381759049 is 940957183.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 259435449 + 122323600 = 16107^2 + 11060^2 .

It is not a de Polignac number, because 381759049 - 2³ = 381759041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381759041) 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 in 5 ways as a sum of consecutive naturals, for example, 3895452 + ... + 3895549.

It is an arithmetic number, because the mean of its divisors is an integer number (74014519).

Almost surely, 2^381759049 is an apocalyptic number.

It is an amenable number.

381759049 is a deficient number, since it is larger than the sum of its proper divisors (62328065).

381759049 is an equidigital number, since it uses as much as digits as its factorization.

381759049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791015 (or 7791008 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 381759049 is about 19538.6552505540. The cubic root of 381759049 is about 725.4315616873.

The spelling of 381759049 in words is "three hundred eighty-one million, seven hundred fifty-nine thousand, forty-nine".