1820926 has 16 divisors (see below), whose sum is σ = 2820096. Its totient is φ = 881496.

The previous prime is 1820899. The next prime is 1820927. The reversal of 1820926 is 6290281.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1820894 and 1820903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14275 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (176256).

2^1820926 is an apocalyptic number.

1820926 is a deficient number, since it is larger than the sum of its proper divisors (999170).

1820926 is a wasteful number, since it uses less digits than its factorization.

1820926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1820926 is about 1349.4169111138. The cubic root of 1820926 is about 122.1136180645.

The spelling of 1820926 in words is "one million, eight hundred twenty thousand, nine hundred twenty-six".