1849221356 has 12 divisors (see below), whose sum is σ = 3237074568. Its totient is φ = 924342912.

The previous prime is 1849221347. The next prime is 1849221377. The reversal of 1849221356 is 6531229481.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50981 + ... + 79356.

It is an arithmetic number, because the mean of its divisors is an integer number (269756214).

Almost surely, 2^1849221356 is an apocalyptic number.

It is an amenable number.

1849221356 is a deficient number, since it is larger than the sum of its proper divisors (1387853212).

1849221356 is a wasteful number, since it uses less digits than its factorization.

1849221356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133888 (or 133886 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 1849221356 is about 43002.5738299465. The cubic root of 1849221356 is about 1227.4287742446.

The spelling of 1849221356 in words is "one billion, eight hundred forty-nine million, two hundred twenty-one thousand, three hundred fifty-six".