63432740 has 96 divisors (see below), whose sum is σ = 160199424. Its totient is φ = 20643840.

The previous prime is 63432739. The next prime is 63432757. The reversal of 63432740 is 4723436.

It is a happy number.

63432740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 246692 + ... + 246948.

It is an arithmetic number, because the mean of its divisors is an integer number (1668744).

Almost surely, 2^63432740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63432740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80099712).

63432740 is an abundant number, since it is smaller than the sum of its proper divisors (96766684).

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

63432740 is a wasteful number, since it uses less digits than its factorization.

63432740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 63432740 is about 7964.4673393768. The cubic root of 63432740 is about 398.8146994592.

The spelling of 63432740 in words is "sixty-three million, four hundred thirty-two thousand, seven hundred forty".