1826401 has 8 divisors (see below), whose sum is σ = 1884800. Its totient is φ = 1769040.

The previous prime is 1826399. The next prime is 1826411. The reversal of 1826401 is 1046281.

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

It is a cyclic number.

It is not a de Polignac number, because 1826401 - 2¹ = 1826399 is a prime.

It is a super-2 number, since 2×1826401² = 6671481225602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1826411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4630 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (235600).

2^1826401 is an apocalyptic number.

It is an amenable number.

1826401 is a deficient number, since it is larger than the sum of its proper divisors (58399).

1826401 is an equidigital number, since it uses as much as digits as its factorization.

1826401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1826401 is about 1351.4440424968. Note that the first 3 decimals coincide. The cubic root of 1826401 is about 122.2358824340.

The spelling of 1826401 in words is "one million, eight hundred twenty-six thousand, four hundred one".