1373557364 has 24 divisors (see below), whose sum is σ = 2613912840. Its totient is φ = 628909056.

The previous prime is 1373557357. The next prime is 1373557373. The reversal of 1373557364 is 4637553731.

It can be written as a sum of positive squares in 4 ways, for example, as 515653264 + 857904100 = 22708^2 + 29290^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270449 + ... + 275480.

It is an arithmetic number, because the mean of its divisors is an integer number (108913035).

Almost surely, 2^1373557364 is an apocalyptic number.

It is an amenable number.

1373557364 is a deficient number, since it is larger than the sum of its proper divisors (1240355476).

1373557364 is a wasteful number, since it uses less digits than its factorization.

1373557364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545987 (or 545985 counting only the distinct ones).

The product of its digits is 793800, while the sum is 44.

The square root of 1373557364 is about 37061.5348306030. The cubic root of 1373557364 is about 1111.6010129855.

The spelling of 1373557364 in words is "one billion, three hundred seventy-three million, five hundred fifty-seven thousand, three hundred sixty-four".