1992002 has 4 divisors (see below), whose sum is σ = 2988006. Its totient is φ = 996000.

The previous prime is 1991999. The next prime is 1992031. The reversal of 1992002 is 2002991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 57121 = 1391^2 + 239^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497999 + ... + 498002.

2^1992002 is an apocalyptic number.

1992002 is a deficient number, since it is larger than the sum of its proper divisors (996004).

1992002 is an equidigital number, since it uses as much as digits as its factorization.

1992002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996003.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1992002 is about 1411.3830096753. The cubic root of 1992002 is about 125.8239331408.

Adding to 1992002 its reverse (2002991), we get a palindrome (3994993).

The spelling of 1992002 in words is "one million, nine hundred ninety-two thousand, two".