1380823953 has 16 divisors (see below), whose sum is σ = 1902712896. Its totient is φ = 890140160.

The previous prime is 1380823943. The next prime is 1380823967. The reversal of 1380823953 is 3593280831.

It is a cyclic number.

It is not a de Polignac number, because 1380823953 - 2⁴ = 1380823937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1380823933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35775 + ... + 63572.

It is an arithmetic number, because the mean of its divisors is an integer number (118919556).

Almost surely, 2^1380823953 is an apocalyptic number.

It is an amenable number.

1380823953 is a deficient number, since it is larger than the sum of its proper divisors (521888943).

1380823953 is a wasteful number, since it uses less digits than its factorization.

1380823953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99504.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1380823953 is about 37159.4396217166. The cubic root of 1380823953 is about 1113.5578163661.

The spelling of 1380823953 in words is "one billion, three hundred eighty million, eight hundred twenty-three thousand, nine hundred fifty-three".