1370800128 has 90 divisors (see below), whose sum is σ = 3677374876. Its totient is φ = 454197248.

The previous prime is 1370800121. The next prime is 1370800133. The reversal of 1370800128 is 8210080731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1370800095 and 1370800104.

It is not an unprimeable number, because it can be changed into a prime (1370800121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8208301 + ... + 8208467.

Almost surely, 2^1370800128 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 1370800128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1838687438).

1370800128 is an abundant number, since it is smaller than the sum of its proper divisors (2306574748).

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

1370800128 is an frugal number, since it uses more digits than its factorization.

1370800128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1370800128 is about 37024.3180625923. The cubic root of 1370800128 is about 1110.8567170605.

Adding to 1370800128 its reverse (8210080731), we get a palindrome (9580880859).

The spelling of 1370800128 in words is "one billion, three hundred seventy million, eight hundred thousand, one hundred twenty-eight".