1375283780 has 48 divisors (see below), whose sum is σ = 3121414464. Its totient is φ = 505975680.

The previous prime is 1375283773. The next prime is 1375283797. The reversal of 1375283780 is 873825731.

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, 64235 + ... + 82925.

It is an arithmetic number, because the mean of its divisors is an integer number (65029468).

Almost surely, 2^1375283780 is an apocalyptic number.

1375283780 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 1375283780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560707232).

1375283780 is an abundant number, since it is smaller than the sum of its proper divisors (1746130684).

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

1375283780 is a wasteful number, since it uses less digits than its factorization.

1375283780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18996 (or 18994 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 1375283780 is about 37084.8187268052. The cubic root of 1375283780 is about 1112.0665395461.

The spelling of 1375283780 in words is "one billion, three hundred seventy-five million, two hundred eighty-three thousand, seven hundred eighty".