63326406 has 64 divisors (see below), whose sum is σ = 155312640. Its totient is φ = 16938240.

The previous prime is 63326359. The next prime is 63326413. The reversal of 63326406 is 60462336.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18130 + ... + 21338.

It is an arithmetic number, because the mean of its divisors is an integer number (2426760).

Almost surely, 2^63326406 is an apocalyptic number.

63326406 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63326406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77656320).

63326406 is an abundant number, since it is smaller than the sum of its proper divisors (91986234).

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

63326406 is a wasteful number, since it uses less digits than its factorization.

63326406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 63326406 is about 7957.7890145442. The cubic root of 63326406 is about 398.5917269025.

The spelling of 63326406 in words is "sixty-three million, three hundred twenty-six thousand, four hundred six".