1081928 has 8 divisors (see below), whose sum is σ = 2028630. Its totient is φ = 540960.

The previous prime is 1081919. The next prime is 1081937. The reversal of 1081928 is 8291801.

It is an interprime number because it is at equal distance from previous prime (1081919) and next prime (1081937).

It can be written as a sum of positive squares in only one way, i.e., 813604 + 268324 = 902^2 + 518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1081928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67613 + ... + 67628.

2^1081928 is an apocalyptic number.

It is an amenable number.

1081928 is a deficient number, since it is larger than the sum of its proper divisors (946702).

1081928 is a wasteful number, since it uses less digits than its factorization.

1081928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135247 (or 135243 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1081928 is about 1040.1576803543. The cubic root of 1081928 is about 102.6595729811.

The spelling of 1081928 in words is "one million, eighty-one thousand, nine hundred twenty-eight".