1802661852 has 12 divisors (see below), whose sum is σ = 4206211016. Its totient is φ = 600887280.

The previous prime is 1802661851. The next prime is 1802661857. The reversal of 1802661852 is 2581662081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1802661852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802661851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75110899 + ... + 75110922.

Almost surely, 2^1802661852 is an apocalyptic number.

1802661852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1802661852 is an abundant number, since it is smaller than the sum of its proper divisors (2403549164).

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

1802661852 is a wasteful number, since it uses less digits than its factorization.

1802661852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150221828 (or 150221826 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1802661852 is about 42457.7655087971. The cubic root of 1802661852 is about 1217.0397305039.

The spelling of 1802661852 in words is "one billion, eight hundred two million, six hundred sixty-one thousand, eight hundred fifty-two".