1988372 has 6 divisors (see below), whose sum is σ = 3479658. Its totient is φ = 994184.

The previous prime is 1988353. The next prime is 1988411. The reversal of 1988372 is 2738891.

It can be written as a sum of positive squares in only one way, i.e., 1449616 + 538756 = 1204^2 + 734^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 248543 + ... + 248550.

It is an arithmetic number, because the mean of its divisors is an integer number (579943).

2^1988372 is an apocalyptic number.

It is an amenable number.

1988372 is a deficient number, since it is larger than the sum of its proper divisors (1491286).

1988372 is a wasteful number, since it uses less digits than its factorization.

1988372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497097 (or 497095 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 1988372 is about 1410.0964506019. The cubic root of 1988372 is about 125.7474575489.

The spelling of 1988372 in words is "one million, nine hundred eighty-eight thousand, three hundred seventy-two".