1301489280 has 576 divisors, whose sum is σ = 5590840320. Its totient is φ = 273162240.

The previous prime is 1301489279. The next prime is 1301489297. The reversal of 1301489280 is 829841031.

It is a tau number, because it is divible by the number of its divisors (576).

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 71 ways as a sum of consecutive naturals, for example, 6813985 + ... + 6814175.

It is an arithmetic number, because the mean of its divisors is an integer number (9706320).

Almost surely, 2^1301489280 is an apocalyptic number.

1301489280 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 1301489280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2795420160).

1301489280 is an abundant number, since it is smaller than the sum of its proper divisors (4289351040).

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

1301489280 is a wasteful number, since it uses less digits than its factorization.

1301489280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1301489280 is about 36076.1594408274. The cubic root of 1301489280 is about 1091.8094905753.

The spelling of 1301489280 in words is "one billion, three hundred one million, four hundred eighty-nine thousand, two hundred eighty".