63189740 has 24 divisors (see below), whose sum is σ = 138468960. Its totient is φ = 24176768.

The previous prime is 63189703. The next prime is 63189751. The reversal of 63189740 is 4798136.

63189740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63189694 and 63189703.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68225 + ... + 69144.

It is an arithmetic number, because the mean of its divisors is an integer number (5769540).

Almost surely, 2^63189740 is an apocalyptic number.

It is an amenable number.

63189740 is an abundant number, since it is smaller than the sum of its proper divisors (75279220).

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

63189740 is a wasteful number, since it uses less digits than its factorization.

63189740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137401 (or 137399 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 63189740 is about 7949.1974437675. The cubic root of 63189740 is about 398.3047840901.

The spelling of 63189740 in words is "sixty-three million, one hundred eighty-nine thousand, seven hundred forty".