1920002 has 8 divisors (see below), whose sum is σ = 3291456. Its totient is φ = 822852.

The previous prime is 1920001. The next prime is 1920011. The reversal of 1920002 is 2000291.

1920002 = 799² + 800² + 801².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 137143 = 1920002 / (1 + 9 + 2 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (1920001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68558 + ... + 68585.

It is an arithmetic number, because the mean of its divisors is an integer number (411432).

2^1920002 is an apocalyptic number.

1920002 is a deficient number, since it is larger than the sum of its proper divisors (1371454).

1920002 is a wasteful number, since it uses less digits than its factorization.

1920002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137152.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1920002 is about 1385.6413677428. The cubic root of 1920002 is about 124.2893433941.

Adding to 1920002 its reverse (2000291), we get a palindrome (3920293).

The spelling of 1920002 in words is "one million, nine hundred twenty thousand, two".