495420578 has 8 divisors (see below), whose sum is σ = 746981868. Its totient is φ = 246426624.

The previous prime is 495420577. The next prime is 495420617. The reversal of 495420578 is 875024594.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 420373009 + 75047569 = 20503^2 + 8663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (495420571) by changing a digit.

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, 641351 + ... + 642122.

Almost surely, 2^495420578 is an apocalyptic number.

495420578 is a deficient number, since it is larger than the sum of its proper divisors (251561290).

495420578 is a wasteful number, since it uses less digits than its factorization.

495420578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283668.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 495420578 is about 22258.0452421141. The cubic root of 495420578 is about 791.2699639991.

The spelling of 495420578 in words is "four hundred ninety-five million, four hundred twenty thousand, five hundred seventy-eight".