130283440 has 80 divisors (see below), whose sum is σ = 350477568. Its totient is φ = 44114688.

The previous prime is 130283423. The next prime is 130283453. The reversal of 130283440 is 44382031.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45079 + ... + 47881.

Almost surely, 2^130283440 is an apocalyptic number.

130283440 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 130283440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175238784).

130283440 is an abundant number, since it is smaller than the sum of its proper divisors (220194128).

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

130283440 is a wasteful number, since it uses less digits than its factorization.

130283440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 130283440 is about 11414.1771494926. The cubic root of 130283440 is about 506.9476012019.

The spelling of 130283440 in words is "one hundred thirty million, two hundred eighty-three thousand, four hundred forty".