1220892 has 12 divisors (see below), whose sum is σ = 2848776. Its totient is φ = 406960.

The previous prime is 1220839. The next prime is 1220893. The reversal of 1220892 is 2980221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50859 + ... + 50882.

It is an arithmetic number, because the mean of its divisors is an integer number (237398).

2^1220892 is an apocalyptic number.

1220892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220892 is an abundant number, since it is smaller than the sum of its proper divisors (1627884).

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

1220892 is a wasteful number, since it uses less digits than its factorization.

1220892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101748 (or 101746 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1220892 is about 1104.9398173656. The cubic root of 1220892 is about 106.8790084335.

It can be divided in two parts, 1220 and 892, that added together give a palindrome (2112).

The spelling of 1220892 in words is "one million, two hundred twenty thousand, eight hundred ninety-two".