1018381 has 24 divisors (see below), whose sum is σ = 1365504. Its totient is φ = 738720.

The previous prime is 1018357. The next prime is 1018411. The reversal of 1018381 is 1838101.

1018381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1018381 - 2⁷ = 1018253 is a prime.

It is a super-2 number, since 2×1018381² = 2074199722322, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32836 + ... + 32866.

It is an arithmetic number, because the mean of its divisors is an integer number (56896).

2^1018381 is an apocalyptic number.

It is an amenable number.

1018381 is a deficient number, since it is larger than the sum of its proper divisors (347123).

1018381 is a wasteful number, since it uses less digits than its factorization.

1018381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1018381 is about 1009.1486510916. The cubic root of 1018381 is about 100.6089838583.

The spelling of 1018381 in words is "one million, eighteen thousand, three hundred eighty-one".