1298424736 has 144 divisors (see below), whose sum is σ = 3209492160. Its totient is φ = 513838080.

The previous prime is 1298424671. The next prime is 1298424797. The reversal of 1298424736 is 6374248921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1220941 + ... + 1222003.

It is an arithmetic number, because the mean of its divisors is an integer number (22288140).

Almost surely, 2^1298424736 is an apocalyptic number.

1298424736 is a gapful number since it is divisible by the number (16) 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 1298424736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604746080).

1298424736 is an abundant number, since it is smaller than the sum of its proper divisors (1911067424).

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

1298424736 is a wasteful number, since it uses less digits than its factorization.

1298424736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1132 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 1298424736 is about 36033.6611517620. The cubic root of 1298424736 is about 1090.9518761873.

The spelling of 1298424736 in words is "one billion, two hundred ninety-eight million, four hundred twenty-four thousand, seven hundred thirty-six".