1298536608 has 192 divisors, whose sum is σ = 3750727680. Its totient is φ = 391910400.

The previous prime is 1298536607. The next prime is 1298536609. The reversal of 1298536608 is 8066358921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1298536607) and next prime (1298536609).

It is a super-2 number, since 2×1298536608² = 3372394644632291328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1298536607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4791513 + ... + 4791783.

It is an arithmetic number, because the mean of its divisors is an integer number (19535040).

Almost surely, 2^1298536608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298536608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875363840).

1298536608 is an abundant number, since it is smaller than the sum of its proper divisors (2452191072).

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

1298536608 is a wasteful number, since it uses less digits than its factorization.

1298536608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 1298536608 is about 36035.2134446294. The cubic root of 1298536608 is about 1090.9832073482.

The spelling of 1298536608 in words is "one billion, two hundred ninety-eight million, five hundred thirty-six thousand, six hundred eight".