1801226 has 8 divisors (see below), whose sum is σ = 3087840. Its totient is φ = 771948.

The previous prime is 1801223. The next prime is 1801229. The reversal of 1801226 is 6221081.

It is an interprime number because it is at equal distance from previous prime (1801223) and next prime (1801229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1801198 and 1801207.

It is not an unprimeable number, because it can be changed into a prime (1801223) 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 3 ways as a sum of consecutive naturals, for example, 64316 + ... + 64343.

It is an arithmetic number, because the mean of its divisors is an integer number (385980).

2^1801226 is an apocalyptic number.

1801226 is a deficient number, since it is larger than the sum of its proper divisors (1286614).

1801226 is a wasteful number, since it uses less digits than its factorization.

1801226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128668.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1801226 is about 1342.0976119493. The cubic root of 1801226 is about 121.6716513460.

The spelling of 1801226 in words is "one million, eight hundred one thousand, two hundred twenty-six".