1820622 has 32 divisors (see below), whose sum is σ = 3830400. Its totient is φ = 576288.

The previous prime is 1820617. The next prime is 1820629. The reversal of 1820622 is 2260281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13029 + ... + 13167.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1820622 is an apocalyptic number.

1820622 is an abundant number, since it is smaller than the sum of its proper divisors (2009778).

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

1820622 is a wasteful number, since it uses less digits than its factorization.

1820622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1820622 is about 1349.3042651678. The cubic root of 1820622 is about 122.1068221438.

It can be divided in two parts, 1820 and 622, that added together give a palindrome (2442).

The spelling of 1820622 in words is "one million, eight hundred twenty thousand, six hundred twenty-two".