1298658 has 16 divisors (see below), whose sum is σ = 2624256. Its totient is φ = 428400.

The previous prime is 1298653. The next prime is 1298699. The reversal of 1298658 is 8568921.

It is not an unprimeable number, because it can be changed into a prime (1298651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (164016).

2^1298658 is an apocalyptic number.

1298658 is an abundant number, since it is smaller than the sum of its proper divisors (1325598).

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

1298658 is a wasteful number, since it uses less digits than its factorization.

1298658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249.

The product of its digits is 34560, while the sum is 39.

The square root of 1298658 is about 1139.5867672099. The cubic root of 1298658 is about 109.1017202669.

The spelling of 1298658 in words is "one million, two hundred ninety-eight thousand, six hundred fifty-eight".