1298220480 has 448 divisors, whose sum is σ = 4892405760. Its totient is φ = 323481600.

The previous prime is 1298220463. The next prime is 1298220493. The reversal of 1298220480 is 840228921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9910015 + ... + 9910145.

Almost surely, 2^1298220480 is an apocalyptic number.

1298220480 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 1298220480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446202880).

1298220480 is an abundant number, since it is smaller than the sum of its proper divisors (3594185280).

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

1298220480 is a wasteful number, since it uses less digits than its factorization.

1298220480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 209 counting only the distinct ones).

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

The square root of 1298220480 is about 36030.8268015043. The cubic root of 1298220480 is about 1090.8946670820.

The spelling of 1298220480 in words is "one billion, two hundred ninety-eight million, two hundred twenty thousand, four hundred eighty".