1385063992 has 16 divisors (see below), whose sum is σ = 2796764040. Its totient is φ = 639260256.

The previous prime is 1385063923. The next prime is 1385063993. The reversal of 1385063992 is 2993605831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385063993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6658858 + ... + 6659065.

Almost surely, 2^1385063992 is an apocalyptic number.

It is an amenable number.

1385063992 is an abundant number, since it is smaller than the sum of its proper divisors (1411700048).

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

1385063992 is a wasteful number, since it uses less digits than its factorization.

1385063992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13317942 (or 13317938 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 1385063992 is about 37216.4478691882. The cubic root of 1385063992 is about 1114.6964370313.

The spelling of 1385063992 in words is "one billion, three hundred eighty-five million, sixty-three thousand, nine hundred ninety-two".