1283530752 has 224 divisors, whose sum is σ = 4351324800. Its totient is φ = 366280704.

The previous prime is 1283530679. The next prime is 1283530763. The reversal of 1283530752 is 2570353821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1547874 + ... + 1548702.

Almost surely, 2^1283530752 is an apocalyptic number.

1283530752 is a gapful number since it is divisible by the number (12) 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 1283530752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2175662400).

1283530752 is an abundant number, since it is smaller than the sum of its proper divisors (3067794048).

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

1283530752 is an frugal number, since it uses more digits than its factorization.

1283530752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1283530752 is about 35826.3974186632. The cubic root of 1283530752 is about 1086.7644567212.

The spelling of 1283530752 in words is "one billion, two hundred eighty-three million, five hundred thirty thousand, seven hundred fifty-two".