1298498260 has 24 divisors (see below), whose sum is σ = 2754962280. Its totient is φ = 514043904.

The previous prime is 1298498221. The next prime is 1298498303. The reversal of 1298498260 is 628948921.

It can be written as a sum of positive squares in 4 ways, for example, as 11410884 + 1287087376 = 3378^2 + 35876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332725 + ... + 336604.

It is an arithmetic number, because the mean of its divisors is an integer number (114790095).

Almost surely, 2^1298498260 is an apocalyptic number.

1298498260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298498260 is an abundant number, since it is smaller than the sum of its proper divisors (1456464020).

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

1298498260 is a wasteful number, since it uses less digits than its factorization.

1298498260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669435 (or 669433 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 1298498260 is about 36034.6813500550. The cubic root of 1298498260 is about 1090.9724677111.

The spelling of 1298498260 in words is "one billion, two hundred ninety-eight million, four hundred ninety-eight thousand, two hundred sixty".