1370915728 has 120 divisors (see below), whose sum is σ = 3435613440. Its totient is φ = 524724480.

The previous prime is 1370915701. The next prime is 1370915737. The reversal of 1370915728 is 8275190731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313783 + ... + 318121.

It is an arithmetic number, because the mean of its divisors is an integer number (28630112).

Almost surely, 2^1370915728 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 1370915728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717806720).

1370915728 is an abundant number, since it is smaller than the sum of its proper divisors (2064697712).

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

1370915728 is a wasteful number, since it uses less digits than its factorization.

1370915728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 1370915728 is about 37025.8791657943. The cubic root of 1370915728 is about 1110.8879424799.

The spelling of 1370915728 in words is "one billion, three hundred seventy million, nine hundred fifteen thousand, seven hundred twenty-eight".