383290 has 8 divisors (see below), whose sum is σ = 689940. Its totient is φ = 153312.

The previous prime is 383281. The next prime is 383291. The reversal of 383290 is 92383.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 380689 + 2601 = 617^2 + 51^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×383290² = 293822448200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (383291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19155 + ... + 19174.

2³⁸³²⁹⁰ is an apocalyptic number.

383290 is a deficient number, since it is larger than the sum of its proper divisors (306650).

383290 is a wasteful number, since it uses less digits than its factorization.

383290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38336.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 383290 is about 619.1041915542. The cubic root of 383290 is about 72.6399990054.

The spelling of 383290 in words is "three hundred eighty-three thousand, two hundred ninety".