1383561948 has 48 divisors (see below), whose sum is σ = 3285999360. Its totient is φ = 452995200.

The previous prime is 1383561917. The next prime is 1383561953. The reversal of 1383561948 is 8491653831.

It is a junction number, because it is equal to n+sod(n) for n = 1383561897 and 1383561906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236523 + ... + 242301.

It is an arithmetic number, because the mean of its divisors is an integer number (68458320).

Almost surely, 2^1383561948 is an apocalyptic number.

It is an amenable number.

1383561948 is an abundant number, since it is smaller than the sum of its proper divisors (1902437412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1383561948 is a wasteful number, since it uses less digits than its factorization.

1383561948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6138 (or 6136 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 1383561948 is about 37196.2625541868. The cubic root of 1383561948 is about 1114.2933440541.

The spelling of 1383561948 in words is "one billion, three hundred eighty-three million, five hundred sixty-one thousand, nine hundred forty-eight".