1386143744 has 56 divisors (see below), whose sum is σ = 2840419008. Its totient is φ = 676003840.

The previous prime is 1386143683. The next prime is 1386143749. The reversal of 1386143744 is 4473416831.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386143749) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 333809 + ... + 337935.

It is an arithmetic number, because the mean of its divisors is an integer number (50721768).

Almost surely, 2^1386143744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386143744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420209504).

1386143744 is an abundant number, since it is smaller than the sum of its proper divisors (1454275264).

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

1386143744 is an frugal number, since it uses more digits than its factorization.

1386143744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4170 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 1386143744 is about 37230.9514248562. The cubic root of 1386143744 is about 1114.9860224675.

The spelling of 1386143744 in words is "one billion, three hundred eighty-six million, one hundred forty-three thousand, seven hundred forty-four".