1386090612 has 36 divisors (see below), whose sum is σ = 3624550020. Its totient is φ = 446097792.

The previous prime is 1386090611. The next prime is 1386090647. The reversal of 1386090612 is 2160906831.

1386090612 is a `hidden beast` number, since 1 + 38 + 6 + 0 + 9 + 0 + 612 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 385886736 + 1000203876 = 19644^2 + 31626^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386090611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 662793 + ... + 664880.

It is an arithmetic number, because the mean of its divisors is an integer number (100681945).

Almost surely, 2^1386090612 is an apocalyptic number.

1386090612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1386090612 is an abundant number, since it is smaller than the sum of its proper divisors (2238459408).

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

1386090612 is a wasteful number, since it uses less digits than its factorization.

1386090612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327712 (or 1327707 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1386090612 is about 37230.2378719234. The cubic root of 1386090612 is about 1114.9717761830.

The spelling of 1386090612 in words is "one billion, three hundred eighty-six million, ninety thousand, six hundred twelve".