1386530544 has 40 divisors (see below), whose sum is σ = 4093567360. Its totient is φ = 396151488.

The previous prime is 1386530543. The next prime is 1386530573. The reversal of 1386530544 is 4450356831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386530543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062954 + ... + 2063625.

It is an arithmetic number, because the mean of its divisors is an integer number (102339184).

Almost surely, 2^1386530544 is an apocalyptic number.

1386530544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1386530544 is an abundant number, since it is smaller than the sum of its proper divisors (2707036816).

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

1386530544 is a wasteful number, since it uses less digits than its factorization.

1386530544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126597 (or 4126591 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 1386530544 is about 37236.1456652001. The cubic root of 1386530544 is about 1115.0897241906.

The spelling of 1386530544 in words is "one billion, three hundred eighty-six million, five hundred thirty thousand, five hundred forty-four".