1381790468 has 6 divisors (see below), whose sum is σ = 2418133326. Its totient is φ = 690895232.

The previous prime is 1381790453. The next prime is 1381790471. The reversal of 1381790468 is 8640971831.

It can be written as a sum of positive squares in only one way, i.e., 1320450244 + 61340224 = 36338^2 + 7832^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172723805 + ... + 172723812.

It is an arithmetic number, because the mean of its divisors is an integer number (403022221).

Almost surely, 2^1381790468 is an apocalyptic number.

It is an amenable number.

1381790468 is a deficient number, since it is larger than the sum of its proper divisors (1036342858).

1381790468 is a wasteful number, since it uses less digits than its factorization.

1381790468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345447621 (or 345447619 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 1381790468 is about 37172.4423195463. The cubic root of 1381790468 is about 1113.8175693237.

The spelling of 1381790468 in words is "one billion, three hundred eighty-one million, seven hundred ninety thousand, four hundred sixty-eight".