1378363892 has 48 divisors (see below), whose sum is σ = 2571018240. Its totient is φ = 644762592.

The previous prime is 1378363807. The next prime is 1378363937. The reversal of 1378363892 is 2983638731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1378363892.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 2830073 + ... + 2830559.

It is an arithmetic number, because the mean of its divisors is an integer number (53562880).

Almost surely, 2^1378363892 is an apocalyptic number.

It is an amenable number.

1378363892 is a deficient number, since it is larger than the sum of its proper divisors (1192654348).

1378363892 is a wasteful number, since it uses less digits than its factorization.

1378363892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 1378363892 is about 37126.3234376904. The cubic root of 1378363892 is about 1112.8961224063.

The spelling of 1378363892 in words is "one billion, three hundred seventy-eight million, three hundred sixty-three thousand, eight hundred ninety-two".