1921002 has 16 divisors (see below), whose sum is σ = 3873792. Its totient is φ = 635040.

The previous prime is 1920991. The next prime is 1921013. The reversal of 1921002 is 2001291.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1920991) and next prime (1921013).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499 + ... + 2022.

It is an arithmetic number, because the mean of its divisors is an integer number (242112).

2^1921002 is an apocalyptic number.

1921002 is an abundant number, since it is smaller than the sum of its proper divisors (1952790).

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

1921002 is a wasteful number, since it uses less digits than its factorization.

1921002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1921002 is about 1386.0021645005. The cubic root of 1921002 is about 124.3109176376.

Adding to 1921002 its reverse (2001291), we get a palindrome (3922293).

The spelling of 1921002 in words is "one million, nine hundred twenty-one thousand, two".