63401418 has 12 divisors (see below), whose sum is σ = 137369778. Its totient is φ = 21133800.

The previous prime is 63401399. The next prime is 63401419. The reversal of 63401418 is 81410436.

63401418 is a `hidden beast` number, since 634 + 0 + 14 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 21372129 = 6483^2 + 4623^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63401391 and 63401400.

It is not an unprimeable number, because it can be changed into a prime (63401419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1761133 + ... + 1761168.

Almost surely, 2^63401418 is an apocalyptic number.

63401418 is an abundant number, since it is smaller than the sum of its proper divisors (73968360).

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

63401418 is a wasteful number, since it uses less digits than its factorization.

63401418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522309 (or 3522306 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 63401418 is about 7962.5007378336. The cubic root of 63401418 is about 398.7490460304.

The spelling of 63401418 in words is "sixty-three million, four hundred one thousand, four hundred eighteen".