381026 has 16 divisors (see below), whose sum is σ = 620160. Its totient is φ = 174960.

The previous prime is 381019. The next prime is 381037. The reversal of 381026 is 620183.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 380989 and 381007.

It is an unprimeable number.

381026 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (38760).

2³⁸¹⁰²⁶ is an apocalyptic number.

381026 is a deficient number, since it is larger than the sum of its proper divisors (239134).

381026 is a wasteful number, since it uses less digits than its factorization.

381026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 381026 is about 617.2730352121. The cubic root of 381026 is about 72.4966942607.

The spelling of 381026 in words is "three hundred eighty-one thousand, twenty-six".