438241281 has 4 divisors (see below), whose sum is σ = 584321712. Its totient is φ = 292160852.

The previous prime is 438241277. The next prime is 438241339. The reversal of 438241281 is 182142834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 438241281 - 2² = 438241277 is a prime.

It is a super-2 number, since 2×438241281² = 384110840745041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438241201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73040211 + ... + 73040216.

It is an arithmetic number, because the mean of its divisors is an integer number (146080428).

Almost surely, 2^438241281 is an apocalyptic number.

It is an amenable number.

438241281 is a deficient number, since it is larger than the sum of its proper divisors (146080431).

438241281 is a wasteful number, since it uses less digits than its factorization.

438241281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146080430.

The product of its digits is 12288, while the sum is 33.

The square root of 438241281 is about 20934.2131688774. The cubic root of 438241281 is about 759.5757564150.

The spelling of 438241281 in words is "four hundred thirty-eight million, two hundred forty-one thousand, two hundred eighty-one".