1081390 has 8 divisors (see below), whose sum is σ = 1946520. Its totient is φ = 432552.

The previous prime is 1081369. The next prime is 1081403. The reversal of 1081390 is 931801.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54060 + ... + 54079.

It is an arithmetic number, because the mean of its divisors is an integer number (243315).

2^1081390 is an apocalyptic number.

1081390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081390 is a deficient number, since it is larger than the sum of its proper divisors (865130).

1081390 is a wasteful number, since it uses less digits than its factorization.

1081390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108146.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1081390 is about 1039.8990335605. The cubic root of 1081390 is about 102.6425539782.

The spelling of 1081390 in words is "one million, eighty-one thousand, three hundred ninety".