1988072 has 8 divisors (see below), whose sum is σ = 3727650. Its totient is φ = 994032.

The previous prime is 1988057. The next prime is 1988087. The reversal of 1988072 is 2708891.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1988057) and next prime (1988087).

It can be written as a sum of positive squares in only one way, i.e., 1976836 + 11236 = 1406^2 + 106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124247 + ... + 124262.

2^1988072 is an apocalyptic number.

It is an amenable number.

1988072 is a deficient number, since it is larger than the sum of its proper divisors (1739578).

1988072 is a wasteful number, since it uses less digits than its factorization.

1988072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248515 (or 248511 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1988072 is about 1409.9900708870. The cubic root of 1988072 is about 125.7411330894.

The spelling of 1988072 in words is "one million, nine hundred eighty-eight thousand, seventy-two".