1802689648 has 20 divisors (see below), whose sum is σ = 3613150440. Its totient is φ = 870263744.

The previous prime is 1802689631. The next prime is 1802689661. The reversal of 1802689648 is 8469862081.

It is a junction number, because it is equal to n+sod(n) for n = 1802689595 and 1802689604.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1942090 + ... + 1943017.

It is an arithmetic number, because the mean of its divisors is an integer number (180657522).

Almost surely, 2^1802689648 is an apocalyptic number.

It is an amenable number.

1802689648 is an abundant number, since it is smaller than the sum of its proper divisors (1810460792).

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

1802689648 is a wasteful number, since it uses less digits than its factorization.

1802689648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885144 (or 3885138 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The square root of 1802689648 is about 42458.0928445921. The cubic root of 1802689648 is about 1217.0459858206.

The spelling of 1802689648 in words is "one billion, eight hundred two million, six hundred eighty-nine thousand, six hundred forty-eight".