1898100 has 144 divisors (see below), whose sum is σ = 6596800. Its totient is φ = 466560.

The previous prime is 1898087. The next prime is 1898107. The reversal of 1898100 is 18981.

1898100 = 8³ + 9³ + ... + 52³.

It is a super-2 number, since 2×1898100² = 7205567220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51282 + ... + 51318.

2^1898100 is an apocalyptic number.

1898100 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 1898100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298400).

1898100 is an abundant number, since it is smaller than the sum of its proper divisors (4698700).

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

1898100 is a wasteful number, since it uses less digits than its factorization.

1898100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1898100 is about 1377.7155003846. The cubic root of 1898100 is about 123.8149337826.

Multiplying 1898100 by its reverse (18981), we get a square (36027836100 = 189810²).

1898100 divided by its reverse (18981) gives a square (100 = 10²).

The spelling of 1898100 in words is "one million, eight hundred ninety-eight thousand, one hundred".