1298149808 has 20 divisors (see below), whose sum is σ = 2624521008. Its totient is φ = 620854080.

The previous prime is 1298149799. The next prime is 1298149837. The reversal of 1298149808 is 8089418921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763423 + ... + 1764158.

Almost surely, 2^1298149808 is an apocalyptic number.

It is an amenable number.

1298149808 is an abundant number, since it is smaller than the sum of its proper divisors (1326371200).

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

1298149808 is a wasteful number, since it uses less digits than its factorization.

1298149808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527612 (or 3527606 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 50.

The square root of 1298149808 is about 36029.8460723884. The cubic root of 1298149808 is about 1090.8748714956.

The spelling of 1298149808 in words is "one billion, two hundred ninety-eight million, one hundred forty-nine thousand, eight hundred eight".