1386656752 has 40 divisors (see below), whose sum is σ = 3019119264. Its totient is φ = 612167424.

The previous prime is 1386656741. The next prime is 1386656759. The reversal of 1386656752 is 2576566831.

It is a junction number, because it is equal to n+sod(n) for n = 1386656696 and 1386656705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386656759) 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, 140143 + ... + 149710.

Almost surely, 2^1386656752 is an apocalyptic number.

It is an amenable number.

1386656752 is an abundant number, since it is smaller than the sum of its proper divisors (1632462512).

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

1386656752 is a wasteful number, since it uses less digits than its factorization.

1386656752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289897 (or 289891 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 49.

The square root of 1386656752 is about 37237.8403240575. The cubic root of 1386656752 is about 1115.1235565921.

The spelling of 1386656752 in words is "one billion, three hundred eighty-six million, six hundred fifty-six thousand, seven hundred fifty-two".