1386797412 has 144 divisors (see below), whose sum is σ = 4422503232. Its totient is φ = 332478720.

The previous prime is 1386797411. The next prime is 1386797437. The reversal of 1386797412 is 2147976831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1386797411) 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, 75838 + ... + 92330.

It is an arithmetic number, because the mean of its divisors is an integer number (30711828).

Almost surely, 2^1386797412 is an apocalyptic number.

1386797412 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 1386797412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2211251616).

1386797412 is an abundant number, since it is smaller than the sum of its proper divisors (3035705820).

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

1386797412 is a wasteful number, since it uses less digits than its factorization.

1386797412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16538 (or 16529 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 1386797412 is about 37239.7289463820. The cubic root of 1386797412 is about 1115.1612607021.

The spelling of 1386797412 in words is "one billion, three hundred eighty-six million, seven hundred ninety-seven thousand, four hundred twelve".