1399808958 has 16 divisors (see below), whose sum is σ = 2818160256. Its totient is φ = 463512600.

The previous prime is 1399808909. The next prime is 1399808981. The reversal of 1399808958 is 8598089931.

It is a Curzon number.

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, 771616 + ... + 773427.

It is an arithmetic number, because the mean of its divisors is an integer number (176135016).

Almost surely, 2^1399808958 is an apocalyptic number.

1399808958 is an abundant number, since it is smaller than the sum of its proper divisors (1418351298).

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

1399808958 is a wasteful number, since it uses less digits than its factorization.

1399808958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545199.

The product of its (nonzero) digits is 5598720, while the sum is 60.

The square root of 1399808958 is about 37414.0208745331. The cubic root of 1399808958 is about 1118.6380548684.

The spelling of 1399808958 in words is "one billion, three hundred ninety-nine million, eight hundred eight thousand, nine hundred fifty-eight".