1949398098 has 16 divisors (see below), whose sum is σ = 3956988000. Its totient is φ = 640100736.

The previous prime is 1949398063. The next prime is 1949398207. The reversal of 1949398098 is 8908939491.

It is a happy 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, 2424223 + ... + 2425026.

It is an arithmetic number, because the mean of its divisors is an integer number (247311750).

Almost surely, 2^1949398098 is an apocalyptic number.

1949398098 is an abundant number, since it is smaller than the sum of its proper divisors (2007589902).

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

1949398098 is a wasteful number, since it uses less digits than its factorization.

1949398098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849321.

The product of its (nonzero) digits is 5038848, while the sum is 60.

The square root of 1949398098 is about 44151.9886075361. The cubic root of 1949398098 is about 1249.2044213244.

The spelling of 1949398098 in words is "one billion, nine hundred forty-nine million, three hundred ninety-eight thousand, ninety-eight".