1008381 has 8 divisors (see below), whose sum is σ = 1466784. Its totient is φ = 611120.

The previous prime is 1008379. The next prime is 1008401. The reversal of 1008381 is 1838001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1008381 - 2¹ = 1008379 is a prime.

It is a super-2 number, since 2×1008381² = 2033664482322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15246 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (183348).

2^1008381 is an apocalyptic number.

1008381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1008381 is a deficient number, since it is larger than the sum of its proper divisors (458403).

1008381 is a wasteful number, since it uses less digits than its factorization.

1008381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30571.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1008381 is about 1004.1817564565. The cubic root of 1008381 is about 100.2785898230.

The spelling of 1008381 in words is "one million, eight thousand, three hundred eighty-one".