1902000 has 80 divisors (see below), whose sum is σ = 6151392. Its totient is φ = 505600.

The previous prime is 1901993. The next prime is 1902007. The reversal of 1902000 is 2091.

It is a happy number.

1902000 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (1901993) and next prime (1902007).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1902007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5842 + ... + 6158.

2^1902000 is an apocalyptic number.

1902000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1902000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075696).

1902000 is an abundant number, since it is smaller than the sum of its proper divisors (4249392).

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

1902000 is a wasteful number, since it uses less digits than its factorization.

1902000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1902000 is about 1379.1301606447. The cubic root of 1902000 is about 123.8996760507.

Adding to 1902000 its reverse (2091), we get a palindrome (1904091).

The spelling of 1902000 in words is "one million, nine hundred two thousand".