598738640 has 240 divisors, whose sum is σ = 1644537600. Its totient is φ = 201793536.

The previous prime is 598738631. The next prime is 598738661. The reversal of 598738640 is 46837895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12739097 + ... + 12739143.

It is an arithmetic number, because the mean of its divisors is an integer number (6852240).

Almost surely, 2^598738640 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 598738640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822268800).

598738640 is an abundant number, since it is smaller than the sum of its proper divisors (1045798960).

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

598738640 is a wasteful number, since it uses less digits than its factorization.

598738640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 598738640 is about 24469.1364784293. The cubic root of 598738640 is about 842.8412105167.

The spelling of 598738640 in words is "five hundred ninety-eight million, seven hundred thirty-eight thousand, six hundred forty".