381024169 has 4 divisors (see below), whose sum is σ = 382688260. Its totient is φ = 379360080.

The previous prime is 381024139. The next prime is 381024191. The reversal of 381024169 is 961420183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255584169 + 125440000 = 15987^2 + 11200^2 .

It is a cyclic number.

It is not a de Polignac number, because 381024169 - 2¹¹ = 381022121 is a prime.

It is a super-2 number, since 2×381024169² = 290358834724281122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381024139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831702 + ... + 832159.

It is an arithmetic number, because the mean of its divisors is an integer number (95672065).

Almost surely, 2^381024169 is an apocalyptic number.

It is an amenable number.

381024169 is a deficient number, since it is larger than the sum of its proper divisors (1664091).

381024169 is a wasteful number, since it uses less digits than its factorization.

381024169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664090.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 381024169 is about 19519.8403938147. The cubic root of 381024169 is about 724.9657813418.

The spelling of 381024169 in words is "three hundred eighty-one million, twenty-four thousand, one hundred sixty-nine".