1386123522 has 96 divisors (see below), whose sum is σ = 3342151680. Its totient is φ = 375036480.

The previous prime is 1386123503. The next prime is 1386123523. The reversal of 1386123522 is 2253216831.

It is not an unprimeable number, because it can be changed into a prime (1386123523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3657129 + ... + 3657507.

It is an arithmetic number, because the mean of its divisors is an integer number (34814080).

Almost surely, 2^1386123522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386123522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671075840).

1386123522 is an abundant number, since it is smaller than the sum of its proper divisors (1956028158).

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

1386123522 is a wasteful number, since it uses less digits than its factorization.

1386123522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 475 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1386123522 is about 37230.6798487484. The cubic root of 1386123522 is about 1114.9806003851.

The spelling of 1386123522 in words is "one billion, three hundred eighty-six million, one hundred twenty-three thousand, five hundred twenty-two".