1386077952 has 144 divisors (see below), whose sum is σ = 4352509952. Its totient is φ = 383201280.

The previous prime is 1386077951. The next prime is 1386077963. The reversal of 1386077952 is 2597706831.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386077951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162498 + ... + 170814.

Almost surely, 2^1386077952 is an apocalyptic number.

1386077952 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 1386077952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176254976).

1386077952 is an abundant number, since it is smaller than the sum of its proper divisors (2966432000).

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

1386077952 is an equidigital number, since it uses as much as digits as its factorization.

1386077952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374 (or 8360 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 1386077952 is about 37230.0678484474. The cubic root of 1386077952 is about 1114.9683816032.

The spelling of 1386077952 in words is "one billion, three hundred eighty-six million, seventy-seven thousand, nine hundred fifty-two".