438790481 has 8 divisors (see below), whose sum is σ = 459259584. Its totient is φ = 418437360.

The previous prime is 438790477. The next prime is 438790489. The reversal of 438790481 is 184097834.

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 438790481 - 2² = 438790477 is a prime.

It is a super-2 number, since 2×438790481² = 385074172432422722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438790489) 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, 21206 + ... + 36431.

It is an arithmetic number, because the mean of its divisors is an integer number (57407448).

Almost surely, 2^438790481 is an apocalyptic number.

It is an amenable number.

438790481 is a deficient number, since it is larger than the sum of its proper divisors (20469103).

438790481 is a wasteful number, since it uses less digits than its factorization.

438790481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57991.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 438790481 is about 20947.3263449062. The cubic root of 438790481 is about 759.8929217794.

The spelling of 438790481 in words is "four hundred thirty-eight million, seven hundred ninety thousand, four hundred eighty-one".