1090436 has 24 divisors (see below), whose sum is σ = 2005080. Its totient is φ = 518400.

The previous prime is 1090423. The next prime is 1090457. The reversal of 1090436 is 6340901.

It can be written as a sum of positive squares in 4 ways, for example, as 8836 + 1081600 = 94^2 + 1040^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9950 + ... + 10058.

It is an arithmetic number, because the mean of its divisors is an integer number (83545).

2^1090436 is an apocalyptic number.

It is an amenable number.

1090436 is a deficient number, since it is larger than the sum of its proper divisors (914644).

1090436 is a wasteful number, since it uses less digits than its factorization.

1090436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1090436 is about 1044.2394361448. The cubic root of 1090436 is about 102.9279667275.

The spelling of 1090436 in words is "one million, ninety thousand, four hundred thirty-six".