1649010198 has 32 divisors (see below), whose sum is σ = 3604568832. Its totient is φ = 498765600.

The previous prime is 1649010161. The next prime is 1649010221. The reversal of 1649010198 is 8910109461.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12615 + ... + 58797.

It is an arithmetic number, because the mean of its divisors is an integer number (112642776).

Almost surely, 2^1649010198 is an apocalyptic number.

1649010198 is an abundant number, since it is smaller than the sum of its proper divisors (1955558634).

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

1649010198 is a wasteful number, since it uses less digits than its factorization.

1649010198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46740.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 1649010198 is about 40608.0065750586. The cubic root of 1649010198 is about 1181.4294173206.

The spelling of 1649010198 in words is "one billion, six hundred forty-nine million, ten thousand, one hundred ninety-eight".