1385266212 has 168 divisors, whose sum is σ = 4175609760. Its totient is φ = 397509120.

The previous prime is 1385266163. The next prime is 1385266243. The reversal of 1385266212 is 2126625831.

1385266212 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 26 + 621 + 2 = 666.

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

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 608308 + ... + 610580.

It is an arithmetic number, because the mean of its divisors is an integer number (24854820).

Almost surely, 2^1385266212 is an apocalyptic number.

1385266212 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 1385266212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2087804880).

1385266212 is an abundant number, since it is smaller than the sum of its proper divisors (2790343548).

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

1385266212 is a wasteful number, since it uses less digits than its factorization.

1385266212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2308 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1385266212 is about 37219.1645795550. The cubic root of 1385266212 is about 1114.7506831276.

It can be divided in two parts, 1385266 and 212, that multiplied together give a palindrome (293676392).

The spelling of 1385266212 in words is "one billion, three hundred eighty-five million, two hundred sixty-six thousand, two hundred twelve".