1988122 has 16 divisors (see below), whose sum is σ = 3173760. Its totient is φ = 931392.

The previous prime is 1988113. The next prime is 1988137. The reversal of 1988122 is 2218891.

It is a happy number.

It is an unprimeable number.

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, 4063 + ... + 4525.

It is an arithmetic number, because the mean of its divisors is an integer number (198360).

2^1988122 is an apocalyptic number.

1988122 is a deficient number, since it is larger than the sum of its proper divisors (1185638).

1988122 is a wasteful number, since it uses less digits than its factorization.

1988122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 2304, while the sum is 31.

The square root of 1988122 is about 1410.0078013969. The cubic root of 1988122 is about 125.7421872102.

The spelling of 1988122 in words is "one million, nine hundred eighty-eight thousand, one hundred twenty-two".