1869798 has 16 divisors (see below), whose sum is σ = 4273920. Its totient is φ = 534216.

The previous prime is 1869793. The next prime is 1869823. The reversal of 1869798 is 8979681.

It is a happy number.

It is a super-2 number, since 2×1869798² = 6992289121608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869793) 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, 22218 + ... + 22301.

It is an arithmetic number, because the mean of its divisors is an integer number (267120).

2^1869798 is an apocalyptic number.

1869798 is an abundant number, since it is smaller than the sum of its proper divisors (2404122).

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

1869798 is a wasteful number, since it uses less digits than its factorization.

1869798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44531.

The product of its digits is 217728, while the sum is 48.

The square root of 1869798 is about 1367.4055726082. The cubic root of 1869798 is about 123.1964604453.

The spelling of 1869798 in words is "one million, eight hundred sixty-nine thousand, seven hundred ninety-eight".