1791386132 has 12 divisors (see below), whose sum is σ = 3146581620. Its totient is φ = 892362816.

The previous prime is 1791386131. The next prime is 1791386147. The reversal of 1791386132 is 2316831971.

It can be written as a sum of positive squares in 2 ways, for example, as 686754436 + 1104631696 = 26206^2 + 33236^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1791386132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1791386131) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 831353 + ... + 833504.

It is an arithmetic number, because the mean of its divisors is an integer number (262215135).

Almost surely, 2^1791386132 is an apocalyptic number.

It is an amenable number.

1791386132 is a deficient number, since it is larger than the sum of its proper divisors (1355195488).

1791386132 is a wasteful number, since it uses less digits than its factorization.

1791386132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665130 (or 1665128 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 1791386132 is about 42324.7697217599. The cubic root of 1791386132 is about 1214.4968776125.

The spelling of 1791386132 in words is "one billion, seven hundred ninety-one million, three hundred eighty-six thousand, one hundred thirty-two".