1081424 has 10 divisors (see below), whose sum is σ = 2095290. Its totient is φ = 540704.

The previous prime is 1081417. The next prime is 1081429. The reversal of 1081424 is 4241801.

It can be written as a sum of positive squares in only one way, i.e., 937024 + 144400 = 968^2 + 380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1081396 and 1081405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33779 + ... + 33810.

It is an arithmetic number, because the mean of its divisors is an integer number (209529).

2^1081424 is an apocalyptic number.

It is an amenable number.

1081424 is a deficient number, since it is larger than the sum of its proper divisors (1013866).

1081424 is an equidigital number, since it uses as much as digits as its factorization.

1081424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67597 (or 67591 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1081424 is about 1039.9153811729. The cubic root of 1081424 is about 102.6436296956.

The spelling of 1081424 in words is "one million, eighty-one thousand, four hundred twenty-four".