1598649120 has 144 divisors (see below), whose sum is σ = 5478363072. Its totient is φ = 424512000.

The previous prime is 1598649071. The next prime is 1598649149. The reversal of 1598649120 is 219468951.

1598649120 is a `hidden beast` number, since 1 + 598 + 6 + 49 + 12 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359229 + ... + 363651.

It is an arithmetic number, because the mean of its divisors is an integer number (38044188).

Almost surely, 2^1598649120 is an apocalyptic number.

1598649120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1598649120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739181536).

1598649120 is an abundant number, since it is smaller than the sum of its proper divisors (3879713952).

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

1598649120 is a wasteful number, since it uses less digits than its factorization.

1598649120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 1598649120 is about 39983.1104342821. The cubic root of 1598649120 is about 1169.2778361797.

The spelling of 1598649120 in words is "one billion, five hundred ninety-eight million, six hundred forty-nine thousand, one hundred twenty".