1801332026 has 16 divisors (see below), whose sum is σ = 2912863464. Its totient is φ = 830521344.

The previous prime is 1801332023. The next prime is 1801332061. The reversal of 1801332026 is 6202331081.

It can be written as a sum of positive squares in 4 ways, for example, as 1640169001 + 161163025 = 40499^2 + 12695^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1801331986 and 1801332004.

It is not an unprimeable number, because it can be changed into a prime (1801332023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10055 + ... + 60858.

Almost surely, 2^1801332026 is an apocalyptic number.

1801332026 is a deficient number, since it is larger than the sum of its proper divisors (1111531438).

1801332026 is a wasteful number, since it uses less digits than its factorization.

1801332026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71905.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1801332026 is about 42442.1020450213. The cubic root of 1801332026 is about 1216.7403862839.

The spelling of 1801332026 in words is "one billion, eight hundred one million, three hundred thirty-two thousand, twenty-six".