1298700416 has 32 divisors (see below), whose sum is σ = 2786277900. Its totient is φ = 599399424.

The previous prime is 1298700353. The next prime is 1298700433. The reversal of 1298700416 is 6140078921.

It can be written as a sum of positive squares in 2 ways, for example, as 970945600 + 327754816 = 31160^2 + 18104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1298700416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388571 + ... + 391898.

Almost surely, 2^1298700416 is an apocalyptic number.

1298700416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1298700416 is an abundant number, since it is smaller than the sum of its proper divisors (1487577484).

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

1298700416 is an equidigital number, since it uses as much as digits as its factorization.

1298700416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780496 (or 780484 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1298700416 is about 36037.4862608368. The cubic root of 1298700416 is about 1091.0290805930.

The spelling of 1298700416 in words is "one billion, two hundred ninety-eight million, seven hundred thousand, four hundred sixteen".