1898001 has 24 divisors (see below), whose sum is σ = 3204864. Its totient is φ = 1059840.

The previous prime is 1897991. The next prime is 1898009. The reversal of 1898001 is 1008981.

It is not a de Polignac number, because 1898001 - 2⁵ = 1897969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1898009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2641 + ... + 3281.

It is an arithmetic number, because the mean of its divisors is an integer number (133536).

2^1898001 is an apocalyptic number.

It is an amenable number.

1898001 is a deficient number, since it is larger than the sum of its proper divisors (1306863).

1898001 is a wasteful number, since it uses less digits than its factorization.

1898001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 698 counting only the distinct ones).

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

The square root of 1898001 is about 1377.6795708727. The cubic root of 1898001 is about 123.8127811226.

The spelling of 1898001 in words is "one million, eight hundred ninety-eight thousand, one".