1386223272 has 96 divisors (see below), whose sum is σ = 4313225280. Its totient is φ = 393984000.

The previous prime is 1386223259. The next prime is 1386223297. The reversal of 1386223272 is 2723226831.

1386223272 is a `hidden beast` number, since 1 + 3 + 8 + 622 + 3 + 27 + 2 = 666.

It is a super-2 number, since 2×1386223272² = 3843229919668771968, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90147 + ... + 104397.

It is an arithmetic number, because the mean of its divisors is an integer number (44929430).

Almost surely, 2^1386223272 is an apocalyptic number.

1386223272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386223272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2156612640).

1386223272 is an abundant number, since it is smaller than the sum of its proper divisors (2927002008).

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

1386223272 is a wasteful number, since it uses less digits than its factorization.

1386223272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14463 (or 14456 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 1386223272 is about 37232.0194456331. The cubic root of 1386223272 is about 1115.0073456319.

The spelling of 1386223272 in words is "one billion, three hundred eighty-six million, two hundred twenty-three thousand, two hundred seventy-two".