438574481 has 2 divisors, whose sum is σ = 438574482. Its totient is φ = 438574480.

The previous prime is 438574447. The next prime is 438574529. The reversal of 438574481 is 184475834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392673856 + 45900625 = 19816^2 + 6775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438574481 is a prime.

It is a super-2 number, since 2×438574481² = 384695150768838722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (438574441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219287240 + 219287241.

It is an arithmetic number, because the mean of its divisors is an integer number (219287241).

Almost surely, 2^438574481 is an apocalyptic number.

It is an amenable number.

438574481 is a deficient number, since it is larger than the sum of its proper divisors (1).

438574481 is an equidigital number, since it uses as much as digits as its factorization.

438574481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 44.

The square root of 438574481 is about 20942.1699209991. The cubic root of 438574481 is about 759.7682124414.

The spelling of 438574481 in words is "four hundred thirty-eight million, five hundred seventy-four thousand, four hundred eighty-one".