60643440 has 480 divisors, whose sum is σ = 259983360. Its totient is φ = 12441600.

The previous prime is 60643439. The next prime is 60643441. The reversal of 60643440 is 4434606.

It is a happy number.

60643440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (60643439) and next prime (60643441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60643441) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1956225 + ... + 1956255.

It is an arithmetic number, because the mean of its divisors is an integer number (541632).

Almost surely, 2^60643440 is an apocalyptic number.

60643440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60643440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129991680).

60643440 is an abundant number, since it is smaller than the sum of its proper divisors (199339920).

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

60643440 is a wasteful number, since it uses less digits than its factorization.

60643440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 60643440 is about 7787.3898066040. The cubic root of 60643440 is about 392.8812258829.

The spelling of 60643440 in words is "sixty million, six hundred forty-three thousand, four hundred forty".