1386575956 has 24 divisors (see below), whose sum is σ = 2511812520. Its totient is φ = 668946432.

The previous prime is 1386575951. The next prime is 1386575989. The reversal of 1386575956 is 6595756831.

It can be written as a sum of positive squares in 4 ways, for example, as 57244356 + 1329331600 = 7566^2 + 36460^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1386575897 and 1386575906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386575951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242280 + ... + 247936.

It is an arithmetic number, because the mean of its divisors is an integer number (104658855).

Almost surely, 2^1386575956 is an apocalyptic number.

It is an amenable number.

1386575956 is a deficient number, since it is larger than the sum of its proper divisors (1125236564).

1386575956 is a wasteful number, since it uses less digits than its factorization.

1386575956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803 (or 7801 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 55.

The square root of 1386575956 is about 37236.7554440502. The cubic root of 1386575956 is about 1115.1018979582.

The spelling of 1386575956 in words is "one billion, three hundred eighty-six million, five hundred seventy-five thousand, nine hundred fifty-six".