63426408 has 64 divisors (see below), whose sum is σ = 167808000. Its totient is φ = 19922112.

The previous prime is 63426383. The next prime is 63426443. The reversal of 63426408 is 80462436.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167163 + ... + 167541.

It is an arithmetic number, because the mean of its divisors is an integer number (2622000).

Almost surely, 2^63426408 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 63426408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83904000).

63426408 is an abundant number, since it is smaller than the sum of its proper divisors (104381592).

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

63426408 is a wasteful number, since it uses less digits than its factorization.

63426408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 63426408 is about 7964.0698138577. The cubic root of 63426408 is about 398.8014288216.

The spelling of 63426408 in words is "sixty-three million, four hundred twenty-six thousand, four hundred eight".