1916900 has 36 divisors (see below), whose sum is σ = 4309620. Its totient is φ = 739200.

The previous prime is 1916881. The next prime is 1916909. The reversal of 1916900 is 96191.

It can be written as a sum of positive squares in 6 ways, for example, as 1444 + 1915456 = 38^2 + 1384^2 .

It is a super-2 number, since 2×1916900² = 7349011220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1916900.

It is not an unprimeable number, because it can be changed into a prime (1916909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2570 + ... + 3230.

2^1916900 is an apocalyptic number.

1916900 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 1916900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154810).

1916900 is an abundant number, since it is smaller than the sum of its proper divisors (2392720).

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

1916900 is a wasteful number, since it uses less digits than its factorization.

1916900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1916900 is about 1384.5215780189. The cubic root of 1916900 is about 124.2223723941. Note that the first 3 decimals are identical.

The spelling of 1916900 in words is "one million, nine hundred sixteen thousand, nine hundred".