63479040 has 144 divisors (see below), whose sum is σ = 206820096. Its totient is φ = 16588800.

The previous prime is 63479033. The next prime is 63479047. The reversal of 63479040 is 4097436.

It is an interprime number because it is at equal distance from previous prime (63479033) and next prime (63479047).

It is a junction number, because it is equal to n+sod(n) for n = 63478992 and 63479010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63479047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234105 + ... + 234375.

Almost surely, 2^63479040 is an apocalyptic number.

63479040 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 63479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103410048).

63479040 is an abundant number, since it is smaller than the sum of its proper divisors (143341056).

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

63479040 is a wasteful number, since it uses less digits than its factorization.

63479040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 63479040 is about 7967.3734693436. The cubic root of 63479040 is about 398.9117084055.

The spelling of 63479040 in words is "sixty-three million, four hundred seventy-nine thousand, forty".