1905198 has 16 divisors (see below), whose sum is σ = 3933696. Its totient is φ = 614520.

The previous prime is 1905181. The next prime is 1905199. The reversal of 1905198 is 8915091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1905199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4936 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (245856).

2^1905198 is an apocalyptic number.

1905198 is an abundant number, since it is smaller than the sum of its proper divisors (2028498).

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

1905198 is a wasteful number, since it uses less digits than its factorization.

1905198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10279.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1905198 is about 1380.2891001526. The cubic root of 1905198 is about 123.9690783113.

The spelling of 1905198 in words is "one million, nine hundred five thousand, one hundred ninety-eight".