1379385288 has 60 divisors (see below), whose sum is σ = 3866205915. Its totient is φ = 459479952.

The previous prime is 1379385283. The next prime is 1379385289. The reversal of 1379385288 is 8825839731.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1379385288 is a `hidden beast` number, since 13 + 79 + 38 + 528 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 689692644 + 689692644 = 26262^2 + 26262^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26262.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1379385283) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 944703 + ... + 946161.

Almost surely, 2^1379385288 is an apocalyptic number.

1379385288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379385288

1379385288 is an abundant number, since it is smaller than the sum of its proper divisors (2486820627).

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

1379385288 is an frugal number, since it uses more digits than its factorization.

1379385288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936 (or 1464 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 1379385288 is about 37140.0765750422. The cubic root of 1379385288 is about 1113.1709475076.

The spelling of 1379385288 in words is "one billion, three hundred seventy-nine million, three hundred eighty-five thousand, two hundred eighty-eight".