1801690252 has 12 divisors (see below), whose sum is σ = 3153471496. Its totient is φ = 900698400.

The previous prime is 1801690237. The next prime is 1801690259. The reversal of 1801690252 is 2520961081.

It is not an unprimeable number, because it can be changed into a prime (1801690259) 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, 6249 + ... + 60352.

Almost surely, 2^1801690252 is an apocalyptic number.

It is an amenable number.

1801690252 is a deficient number, since it is larger than the sum of its proper divisors (1351781244).

1801690252 is a wasteful number, since it uses less digits than its factorization.

1801690252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73368 (or 73366 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1801690252 is about 42446.3220079196. The cubic root of 1801690252 is about 1216.8210375548.

The spelling of 1801690252 in words is "one billion, eight hundred one million, six hundred ninety thousand, two hundred fifty-two".