1799421 has 32 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 1016064.

The previous prime is 1799417. The next prime is 1799423. The reversal of 1799421 is 1249971.

It is not a de Polignac number, because 1799421 - 2² = 1799417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41826 + ... + 41868.

It is an arithmetic number, because the mean of its divisors is an integer number (87780).

2^1799421 is an apocalyptic number.

It is an amenable number.

1799421 is a deficient number, since it is larger than the sum of its proper divisors (1009539).

1799421 is a wasteful number, since it uses less digits than its factorization.

1799421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125.

The product of its digits is 4536, while the sum is 33.

The square root of 1799421 is about 1341.4249885849. The cubic root of 1799421 is about 121.6309955684.

The spelling of 1799421 in words is "one million, seven hundred ninety-nine thousand, four hundred twenty-one".