660295452 has 24 divisors (see below), whose sum is σ = 1563686656. Its totient is φ = 216813168.

The previous prime is 660295411. The next prime is 660295457. The reversal of 660295452 is 254592066.

It is a self number, because there is not a number n which added to its sum of digits gives 660295452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660295457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409828 + ... + 411435.

Almost surely, 2^660295452 is an apocalyptic number.

It is an amenable number.

660295452 is an abundant number, since it is smaller than the sum of its proper divisors (903391204).

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

660295452 is a wasteful number, since it uses less digits than its factorization.

660295452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821337 (or 821335 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 660295452 is about 25696.2147406967. The cubic root of 660295452 is about 870.7886678545.

The spelling of 660295452 in words is "six hundred sixty million, two hundred ninety-five thousand, four hundred fifty-two".