1799826 has 16 divisors (see below), whose sum is σ = 4113984. Its totient is φ = 514224.

The previous prime is 1799803. The next prime is 1799839. The reversal of 1799826 is 6289971.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 42853 = 1799826 / (1 + 7 + 9 + 9 + 8 + 2 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21385 + ... + 21468.

It is an arithmetic number, because the mean of its divisors is an integer number (257124).

2^1799826 is an apocalyptic number.

1799826 is an abundant number, since it is smaller than the sum of its proper divisors (2314158).

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

1799826 is a wasteful number, since it uses less digits than its factorization.

1799826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42865.

The product of its digits is 54432, while the sum is 42.

The square root of 1799826 is about 1341.5759389613. The cubic root of 1799826 is about 121.6401201439.

The spelling of 1799826 in words is "one million, seven hundred ninety-nine thousand, eight hundred twenty-six".