655468436 has 48 divisors (see below), whose sum is σ = 1345344000. Its totient is φ = 273581280.

The previous prime is 655468427. The next prime is 655468453. The reversal of 655468436 is 634864556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600251 + ... + 601341.

It is an arithmetic number, because the mean of its divisors is an integer number (28028000).

Almost surely, 2^655468436 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 655468436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672672000).

655468436 is an abundant number, since it is smaller than the sum of its proper divisors (689875564).

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

655468436 is a wasteful number, since it uses less digits than its factorization.

655468436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1642 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The square root of 655468436 is about 25602.1178030256. The cubic root of 655468436 is about 868.6615416652.

The spelling of 655468436 in words is "six hundred fifty-five million, four hundred sixty-eight thousand, four hundred thirty-six".