63340668 has 18 divisors (see below), whose sum is σ = 160111224. Its totient is φ = 21113544.

The previous prime is 63340637. The next prime is 63340679. The reversal of 63340668 is 86604336.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1759463 = 63340668 / (6 + 3 + 3 + 4 + 0 + 6 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 879696 + ... + 879767.

It is an arithmetic number, because the mean of its divisors is an integer number (8895068).

Almost surely, 2^63340668 is an apocalyptic number.

It is an amenable number.

63340668 is an abundant number, since it is smaller than the sum of its proper divisors (96770556).

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

63340668 is a wasteful number, since it uses less digits than its factorization.

63340668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759473 (or 1759468 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 63340668 is about 7958.6850672708. The cubic root of 63340668 is about 398.6216474831.

The spelling of 63340668 in words is "sixty-three million, three hundred forty thousand, six hundred sixty-eight".