655264340 has 12 divisors (see below), whose sum is σ = 1376055156. Its totient is φ = 262105728.

The previous prime is 655264301. The next prime is 655264397. The reversal of 655264340 is 43462556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 255424324 + 399840016 = 15982^2 + 19996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 655264340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16381589 + ... + 16381628.

It is an arithmetic number, because the mean of its divisors is an integer number (114671263).

Almost surely, 2^655264340 is an apocalyptic number.

It is an amenable number.

655264340 is an abundant number, since it is smaller than the sum of its proper divisors (720790816).

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

655264340 is a wasteful number, since it uses less digits than its factorization.

655264340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32763226 (or 32763224 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 655264340 is about 25598.1315724410. The cubic root of 655264340 is about 868.5713726906.

The spelling of 655264340 in words is "six hundred fifty-five million, two hundred sixty-four thousand, three hundred forty".