655098400 has 288 divisors, whose sum is σ = 1923626880. Its totient is φ = 215040000.

The previous prime is 655098377. The next prime is 655098401. The reversal of 655098400 is 4890556.

It is a self number, because there is not a number n which added to its sum of digits gives 655098400.

It is not an unprimeable number, because it can be changed into a prime (655098401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4338325 + ... + 4338475.

It is an arithmetic number, because the mean of its divisors is an integer number (6679260).

Almost surely, 2^655098400 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 655098400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961813440).

655098400 is an abundant number, since it is smaller than the sum of its proper divisors (1268528480).

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

655098400 is a wasteful number, since it uses less digits than its factorization.

655098400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 655098400 is about 25594.8901150210. The cubic root of 655098400 is about 868.4980471164.

The spelling of 655098400 in words is "six hundred fifty-five million, ninety-eight thousand, four hundred".