1301883840 has 140 divisors (see below), whose sum is σ = 4631122056. Its totient is φ = 347162112.

The previous prime is 1301883829. The next prime is 1301883853. The reversal of 1301883840 is 483881031.

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

It is a junction number, because it is equal to n+sod(n) for n = 1301883795 and 1301883804.

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, 807 + ... + 51033.

Almost surely, 2^1301883840 is an apocalyptic number.

1301883840 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 1301883840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315561028).

1301883840 is an abundant number, since it is smaller than the sum of its proper divisors (3329238216).

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

1301883840 is an equidigital number, since it uses as much as digits as its factorization.

1301883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50256 (or 50237 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1301883840 is about 36081.6274577520. The cubic root of 1301883840 is about 1091.9198105588.

The spelling of 1301883840 in words is "one billion, three hundred one million, eight hundred eighty-three thousand, eight hundred forty".