899598420 has 192 divisors, whose sum is σ = 3212697600. Its totient is φ = 204716160.

The previous prime is 899598407. The next prime is 899598421. The reversal of 899598420 is 24895998.

899598420 is a `hidden beast` number, since 8 + 9 + 9 + 598 + 42 + 0 = 666.

899598420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899598421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1250821 + ... + 1251539.

It is an arithmetic number, because the mean of its divisors is an integer number (16732800).

Almost surely, 2^899598420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899598420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606348800).

899598420 is an abundant number, since it is smaller than the sum of its proper divisors (2313099180).

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

899598420 is a wasteful number, since it uses less digits than its factorization.

899598420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 899598420 is about 29993.3062532292. The cubic root of 899598420 is about 965.3457627877.

The spelling of 899598420 in words is "eight hundred ninety-nine million, five hundred ninety-eight thousand, four hundred twenty".