63503340 has 24 divisors (see below), whose sum is σ = 177809520. Its totient is φ = 16934208.

The previous prime is 63503327. The next prime is 63503371. The reversal of 63503340 is 4330536.

It is a self number, because there is not a number n which added to its sum of digits gives 63503340.

It is an unprimeable number.

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, 529135 + ... + 529254.

It is an arithmetic number, because the mean of its divisors is an integer number (7408730).

Almost surely, 2^63503340 is an apocalyptic number.

63503340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63503340 is an abundant number, since it is smaller than the sum of its proper divisors (114306180).

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

63503340 is a wasteful number, since it uses less digits than its factorization.

63503340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058401 (or 1058399 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 63503340 is about 7968.8982927378. The cubic root of 63503340 is about 398.9626035139.

Adding to 63503340 its reverse (4330536), we get a palindrome (67833876).

The spelling of 63503340 in words is "sixty-three million, five hundred three thousand, three hundred forty".