1209802 has 16 divisors (see below), whose sum is σ = 1999872. Its totient is φ = 544320.

The previous prime is 1209781. The next prime is 1209809. The reversal of 1209802 is 2089021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1209809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2578 + ... + 3010.

It is an arithmetic number, because the mean of its divisors is an integer number (124992).

2^1209802 is an apocalyptic number.

1209802 is a deficient number, since it is larger than the sum of its proper divisors (790070).

1209802 is a wasteful number, since it uses less digits than its factorization.

1209802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1209802 is about 1099.9099963179. The cubic root of 1209802 is about 106.5544109838.

The spelling of 1209802 in words is "one million, two hundred nine thousand, eight hundred two".