495024640 has 80 divisors (see below), whose sum is σ = 1294872480. Its totient is φ = 179998720.

The previous prime is 495024631. The next prime is 495024641. The reversal of 495024640 is 46420594.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 495024596 and 495024605.

It is not an unprimeable number, because it can be changed into a prime (495024641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19371 + ... + 36949.

It is an arithmetic number, because the mean of its divisors is an integer number (16185906).

Almost surely, 2^495024640 is an apocalyptic number.

495024640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 495024640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647436240).

495024640 is an abundant number, since it is smaller than the sum of its proper divisors (799847840).

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

495024640 is a wasteful number, since it uses less digits than its factorization.

495024640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17613 (or 17597 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 495024640 is about 22249.1491972165. The cubic root of 495024640 is about 791.0591146326.

The spelling of 495024640 in words is "four hundred ninety-five million, twenty-four thousand, six hundred forty".