1880000 has 70 divisors (see below), whose sum is σ = 4760976. Its totient is φ = 736000.

The previous prime is 1879967. The next prime is 1880017. The reversal of 1880000 is 881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39977 + ... + 40023.

2^1880000 is an apocalyptic number.

1880000 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 1880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380488).

1880000 is an abundant number, since it is smaller than the sum of its proper divisors (2880976).

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

1880000 is an frugal number, since it uses more digits than its factorization.

1880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1880000 is about 1371.1309200802. The cubic root of 1880000 is about 123.4201158555.

Adding to 1880000 its reverse (881), we get a palindrome (1880881).

It can be divided in two parts, 18 and 80000, that multiplied together give a square (1440000 = 1200²).

The spelling of 1880000 in words is "one million, eight hundred eighty thousand".