63317040 has 40 divisors (see below), whose sum is σ = 196283568. Its totient is φ = 16884480.

The previous prime is 63317011. The next prime is 63317047. The reversal of 63317040 is 4071336.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 63317040.

It is not an unprimeable number, because it can be changed into a prime (63317047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131671 + ... + 132150.

Almost surely, 2^63317040 is an apocalyptic number.

63317040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63317040 is an abundant number, since it is smaller than the sum of its proper divisors (132966528).

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

63317040 is a wasteful number, since it uses less digits than its factorization.

63317040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263837 (or 263831 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 63317040 is about 7957.2005127432. The cubic root of 63317040 is about 398.5720753100.

Adding to 63317040 its reverse (4071336), we get a palindrome (67388376).

The spelling of 63317040 in words is "sixty-three million, three hundred seventeen thousand, forty".