380890969 has 4 divisors (see below), whose sum is σ = 381421440. Its totient is φ = 380360500.

The previous prime is 380890927. The next prime is 380890973. The reversal of 380890969 is 969098083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 969098083 = 863 ⋅1122941.

It is a cyclic number.

It is not a de Polignac number, because 380890969 - 2²¹ = 378793817 is a prime.

It is a super-2 number, since 2×380890969² = 290155860531517922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380890919) 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, 264157 + ... + 265594.

It is an arithmetic number, because the mean of its divisors is an integer number (95355360).

Almost surely, 2^380890969 is an apocalyptic number.

It is an amenable number.

380890969 is a deficient number, since it is larger than the sum of its proper divisors (530471).

380890969 is an equidigital number, since it uses as much as digits as its factorization.

380890969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530470.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 380890969 is about 19516.4281824313. The cubic root of 380890969 is about 724.8812926534.

The spelling of 380890969 in words is "three hundred eighty million, eight hundred ninety thousand, nine hundred sixty-nine".