1809653348 has 6 divisors (see below), whose sum is σ = 3166893366. Its totient is φ = 904826672.

The previous prime is 1809653341. The next prime is 1809653381. The reversal of 1809653348 is 8433569081.

It can be written as a sum of positive squares in only one way, i.e., 1048334884 + 761318464 = 32378^2 + 27592^2 .

It is not an unprimeable number, because it can be changed into a prime (1809653341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226206665 + ... + 226206672.

It is an arithmetic number, because the mean of its divisors is an integer number (527815561).

Almost surely, 2^1809653348 is an apocalyptic number.

It is an amenable number.

1809653348 is a deficient number, since it is larger than the sum of its proper divisors (1357240018).

1809653348 is a wasteful number, since it uses less digits than its factorization.

1809653348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452413341 (or 452413339 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1809653348 is about 42540.0205453641. The cubic root of 1809653348 is about 1218.6111014952.

The spelling of 1809653348 in words is "one billion, eight hundred nine million, six hundred fifty-three thousand, three hundred forty-eight".