1090602 has 12 divisors (see below), whose sum is σ = 2363010. Its totient is φ = 363528.

The previous prime is 1090597. The next prime is 1090613. The reversal of 1090602 is 2060901.

It can be written as a sum of positive squares in only one way, i.e., 741321 + 349281 = 861^2 + 591^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 60589 = 1090602 / (1 + 0 + 9 + 0 + 6 + 0 + 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 5 ways as a sum of consecutive naturals, for example, 30277 + ... + 30312.

2^1090602 is an apocalyptic number.

1090602 is an abundant number, since it is smaller than the sum of its proper divisors (1272408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1090602 is a wasteful number, since it uses less digits than its factorization.

1090602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60597 (or 60594 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1090602 is about 1044.3189168065. The cubic root of 1090602 is about 102.9331894628.

Subtracting 1090602 from its reverse (2060901), we obtain a cube (970299 = 99³).

The spelling of 1090602 in words is "one million, ninety thousand, six hundred two".