1898055 has 12 divisors (see below), whose sum is σ = 3290040. Its totient is φ = 1012272.

The previous prime is 1898053. The next prime is 1898069. The reversal of 1898055 is 5508981.

It is not a de Polignac number, because 1898055 - 2¹ = 1898053 is a prime.

It is a super-2 number, since 2×1898055² = 7205225566050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898051) 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 11 ways as a sum of consecutive naturals, for example, 21045 + ... + 21134.

It is an arithmetic number, because the mean of its divisors is an integer number (274170).

2^1898055 is an apocalyptic number.

1898055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1898055 is a deficient number, since it is larger than the sum of its proper divisors (1391985).

1898055 is a wasteful number, since it uses less digits than its factorization.

1898055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42190 (or 42187 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1898055 is about 1377.6991689044. The cubic root of 1898055 is about 123.8139553101.

The spelling of 1898055 in words is "one million, eight hundred ninety-eight thousand, fifty-five".