1387152228 has 192 divisors, whose sum is σ = 4289402880. Its totient is φ = 340813440.

The previous prime is 1387152211. The next prime is 1387152229. The reversal of 1387152228 is 8222517831.

It is not an unprimeable number, because it can be changed into a prime (1387152229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2123950 + ... + 2124602.

It is an arithmetic number, because the mean of its divisors is an integer number (22340640).

Almost surely, 2^1387152228 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 1387152228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144701440).

1387152228 is an abundant number, since it is smaller than the sum of its proper divisors (2902250652).

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

1387152228 is a wasteful number, since it uses less digits than its factorization.

1387152228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 695 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 1387152228 is about 37244.4925861529. The cubic root of 1387152228 is about 1115.2563583023.

It can be divided in two parts, 1387152 and 228, that multiplied together give a square (316270656 = 17784²).

The spelling of 1387152228 in words is "one billion, three hundred eighty-seven million, one hundred fifty-two thousand, two hundred twenty-eight".