1387228192 has 48 divisors (see below), whose sum is σ = 3127868352. Its totient is φ = 593268480.

The previous prime is 1387228189. The next prime is 1387228217. The reversal of 1387228192 is 2918227831.

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, 103678 + ... + 116290.

It is an arithmetic number, because the mean of its divisors is an integer number (65163924).

Almost surely, 2^1387228192 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 1387228192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563934176).

1387228192 is an abundant number, since it is smaller than the sum of its proper divisors (1740640160).

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

1387228192 is a wasteful number, since it uses less digits than its factorization.

1387228192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13121 (or 13113 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 1387228192 is about 37245.5123739760. The cubic root of 1387228192 is about 1115.2767160265.

The spelling of 1387228192 in words is "one billion, three hundred eighty-seven million, two hundred twenty-eight thousand, one hundred ninety-two".