1598842221 has 8 divisors (see below), whose sum is σ = 2152896864. Its totient is φ = 1055341200.

The previous prime is 1598842207. The next prime is 1598842291. The reversal of 1598842221 is 1222488951.

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

It is not a de Polignac number, because 1598842221 - 2⁷ = 1598842093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1598842291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2638051 + ... + 2638656.

It is an arithmetic number, because the mean of its divisors is an integer number (269112108).

Almost surely, 2^1598842221 is an apocalyptic number.

It is an amenable number.

1598842221 is a deficient number, since it is larger than the sum of its proper divisors (554054643).

1598842221 is a wasteful number, since it uses less digits than its factorization.

1598842221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276811.

The product of its digits is 92160, while the sum is 42.

The square root of 1598842221 is about 39985.5251434816. The cubic root of 1598842221 is about 1169.3249133497.

The spelling of 1598842221 in words is "one billion, five hundred ninety-eight million, eight hundred forty-two thousand, two hundred twenty-one".