63405472 has 24 divisors (see below), whose sum is σ = 134432676. Its totient is φ = 29263872.

The previous prime is 63405467. The next prime is 63405481. The reversal of 63405472 is 27450436.

It can be written as a sum of positive squares in 2 ways, for example, as 51322896 + 12082576 = 7164^2 + 3476^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75793 + ... + 76624.

Almost surely, 2^63405472 is an apocalyptic number.

It is an amenable number.

63405472 is an abundant number, since it is smaller than the sum of its proper divisors (71027204).

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

63405472 is a wasteful number, since it uses less digits than its factorization.

63405472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152440 (or 152432 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 63405472 is about 7962.7553020296. The cubic root of 63405472 is about 398.7575447582.

The spelling of 63405472 in words is "sixty-three million, four hundred five thousand, four hundred seventy-two".