1258613298 has 12 divisors (see below), whose sum is σ = 2726995518. Its totient is φ = 419537760.

The previous prime is 1258613297. The next prime is 1258613327. The reversal of 1258613298 is 8923168521.

1258613298 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 613 + 29 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1198752129 + 59861169 = 34623^2 + 7737^2 .

It is not an unprimeable number, because it can be changed into a prime (1258613297) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 34961463 + ... + 34961498.

Almost surely, 2^1258613298 is an apocalyptic number.

1258613298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1258613298 is an abundant number, since it is smaller than the sum of its proper divisors (1468382220).

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

1258613298 is a wasteful number, since it uses less digits than its factorization.

1258613298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69922969 (or 69922966 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 1258613298 is about 35476.9403697670. The cubic root of 1258613298 is about 1079.6859220454.

The spelling of 1258613298 in words is "one billion, two hundred fifty-eight million, six hundred thirteen thousand, two hundred ninety-eight".