438461607 has 4 divisors (see below), whose sum is σ = 584615480. Its totient is φ = 292307736.

The previous prime is 438461599. The next prime is 438461641. The reversal of 438461607 is 706164834.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 438461607 - 2³ = 438461599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438461677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73076932 + ... + 73076937.

It is an arithmetic number, because the mean of its divisors is an integer number (146153870).

Almost surely, 2^438461607 is an apocalyptic number.

438461607 is a deficient number, since it is larger than the sum of its proper divisors (146153873).

438461607 is a wasteful number, since it uses less digits than its factorization.

438461607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146153872.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 438461607 is about 20939.4748501485. The cubic root of 438461607 is about 759.7030274393.

The spelling of 438461607 in words is "four hundred thirty-eight million, four hundred sixty-one thousand, six hundred seven".