1641606298 has 8 divisors (see below), whose sum is σ = 2522468340. Its totient is φ = 800783520.

The previous prime is 1641606283. The next prime is 1641606341. The reversal of 1641606298 is 8926061461.

It can be written as a sum of positive squares in 2 ways, for example, as 1092500809 + 549105489 = 33053^2 + 23433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10009713 + ... + 10009876.

Almost surely, 2^1641606298 is an apocalyptic number.

1641606298 is a deficient number, since it is larger than the sum of its proper divisors (880862042).

1641606298 is a wasteful number, since it uses less digits than its factorization.

1641606298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019632.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1641606298 is about 40516.7409597564. The cubic root of 1641606298 is about 1179.6585955731.

The spelling of 1641606298 in words is "one billion, six hundred forty-one million, six hundred six thousand, two hundred ninety-eight".