1375069440 has 144 divisors (see below), whose sum is σ = 4407092928. Its totient is φ = 365395968.

The previous prime is 1375069427. The next prime is 1375069457. The reversal of 1375069440 is 449605731.

It is a congruent number.

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, 1662307 + ... + 1663133.

It is an arithmetic number, because the mean of its divisors is an integer number (30604812).

Almost surely, 2^1375069440 is an apocalyptic number.

1375069440 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 1375069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203546464).

1375069440 is an abundant number, since it is smaller than the sum of its proper divisors (3032023488).

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

1375069440 is an equidigital number, since it uses as much as digits as its factorization.

1375069440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1375069440 is about 37081.9287524260. The cubic root of 1375069440 is about 1112.0087641426.

The spelling of 1375069440 in words is "one billion, three hundred seventy-five million, sixty-nine thousand, four hundred forty".