1300440000 has 140 divisors (see below), whose sum is σ = 4299954824. Its totient is φ = 346752000.

The previous prime is 1300439981. The next prime is 1300440017. The reversal of 1300440000 is 440031.

It is a super-2 number, since 2×1300440000² = 3382288387200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 114582 + ... + 125418.

Almost surely, 2^1300440000 is an apocalyptic number.

1300440000 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 1300440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149977412).

1300440000 is an abundant number, since it is smaller than the sum of its proper divisors (2999514824).

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

1300440000 is an equidigital number, since it uses as much as digits as its factorization.

1300440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10872 (or 10847 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1300440000 is about 36061.6139405879. The cubic root of 1300440000 is about 1091.5160006767.

Adding to 1300440000 its reverse (440031), we get a palindrome (1300880031).

The spelling of 1300440000 in words is "one billion, three hundred million, four hundred forty thousand".