1801622 has 16 divisors (see below), whose sum is σ = 2806272. Its totient is φ = 866880.

The previous prime is 1801619. The next prime is 1801669. The reversal of 1801622 is 2261081.

It is a junction number, because it is equal to n+sod(n) for n = 1801594 and 1801603.

It is a congruent 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, 10328 + ... + 10500.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

2^1801622 is an apocalyptic number.

1801622 is a deficient number, since it is larger than the sum of its proper divisors (1004650).

1801622 is a wasteful number, since it uses less digits than its factorization.

1801622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343.

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

The square root of 1801622 is about 1342.2451340944. The cubic root of 1801622 is about 121.6805672073.

The spelling of 1801622 in words is "one million, eight hundred one thousand, six hundred twenty-two".