1386219072 has 56 divisors (see below), whose sum is σ = 4191666496. Its totient is φ = 396062208.

The previous prime is 1386219059. The next prime is 1386219113. The reversal of 1386219072 is 2709126831.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 1386219072.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514363 + ... + 517050.

Almost surely, 2^1386219072 is an apocalyptic number.

1386219072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1386219072 is an abundant number, since it is smaller than the sum of its proper divisors (2805447424).

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

1386219072 is a wasteful number, since it uses less digits than its factorization.

1386219072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031435 (or 1031425 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1386219072 is about 37231.9630425257. The cubic root of 1386219072 is about 1115.0062195421.

The spelling of 1386219072 in words is "one billion, three hundred eighty-six million, two hundred nineteen thousand, seventy-two".