1375002240 has 128 divisors (see below), whose sum is σ = 4489974720. Its totient is φ = 357703680.

The previous prime is 1375002229. The next prime is 1375002263. The reversal of 1375002240 is 422005731.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1375002240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69987 + ... + 87453.

Almost surely, 2^1375002240 is an apocalyptic number.

1375002240 is a gapful number since it is divisible by the number (10) 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 1375002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244987360).

1375002240 is an abundant number, since it is smaller than the sum of its proper divisors (3114972480).

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

1375002240 is a wasteful number, since it uses less digits than its factorization.

1375002240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17530 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1375002240 is about 37081.0226396199. The cubic root of 1375002240 is about 1111.9906491286.

Adding to 1375002240 its reverse (422005731), we get a palindrome (1797007971).

The spelling of 1375002240 in words is "one billion, three hundred seventy-five million, two thousand, two hundred forty".