63928480 has 96 divisors (see below), whose sum is σ = 188334720. Its totient is φ = 19921920.

The previous prime is 63928457. The next prime is 63928481. The reversal of 63928480 is 8482936.

63928480 = 1051² + 1052² + ... + 1105².

It is a super-2 number, since 2×63928480² = 8173701110220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (63928481) 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, 9726 + ... + 14914.

It is an arithmetic number, because the mean of its divisors is an integer number (1961820).

Almost surely, 2^63928480 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 63928480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94167360).

63928480 is an abundant number, since it is smaller than the sum of its proper divisors (124406240).

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

63928480 is a wasteful number, since it uses less digits than its factorization.

63928480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222 (or 5214 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 63928480 is about 7995.5287504955. The cubic root of 63928480 is about 399.8509444630.

The spelling of 63928480 in words is "sixty-three million, nine hundred twenty-eight thousand, four hundred eighty".