1802026 has 4 divisors (see below), whose sum is σ = 2703042. Its totient is φ = 901012.

The previous prime is 1801997. The next prime is 1802029. The reversal of 1802026 is 6202081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6202081 = 1531 ⋅4051.

It can be written as a sum of positive squares in only one way, i.e., 1500625 + 301401 = 1225^2 + 549^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1801994 and 1802012.

It is not an unprimeable number, because it can be changed into a prime (1802029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450505 + ... + 450508.

2^1802026 is an apocalyptic number.

1802026 is a deficient number, since it is larger than the sum of its proper divisors (901016).

1802026 is an equidigital number, since it uses as much as digits as its factorization.

1802026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901015.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1802026 is about 1342.3956197783. The cubic root of 1802026 is about 121.6896618407.

The spelling of 1802026 in words is "one million, eight hundred two thousand, twenty-six".