438648481 has 8 divisors (see below), whose sum is σ = 453609728. Its totient is φ = 423738000.

The previous prime is 438648449. The next prime is 438648493. The reversal of 438648481 is 184846834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 438648481 - 2⁵ = 438648449 is a prime.

It is a super-2 number, since 2×438648481² = 384824979767214722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438648181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5311 + ... + 30091.

It is an arithmetic number, because the mean of its divisors is an integer number (56701216).

Almost surely, 2^438648481 is an apocalyptic number.

It is an amenable number.

438648481 is a deficient number, since it is larger than the sum of its proper divisors (14961247).

438648481 is a wasteful number, since it uses less digits than its factorization.

438648481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25383.

The product of its digits is 589824, while the sum is 46.

The square root of 438648481 is about 20943.9366165962. The cubic root of 438648481 is about 759.8109415469.

The spelling of 438648481 in words is "four hundred thirty-eight million, six hundred forty-eight thousand, four hundred eighty-one".