930638441 has 4 divisors (see below), whose sum is σ = 935362692. Its totient is φ = 925914192.

The previous prime is 930638431. The next prime is 930638453. The reversal of 930638441 is 144836039.

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

It can be written as a sum of positive squares in 2 ways, for example, as 789385216 + 141253225 = 28096^2 + 11885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-930638441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 930638395 and 930638404.

It is not an unprimeable number, because it can be changed into a prime (930638431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361830 + ... + 2362223.

It is an arithmetic number, because the mean of its divisors is an integer number (233840673).

Almost surely, 2^930638441 is an apocalyptic number.

It is an amenable number.

930638441 is a deficient number, since it is larger than the sum of its proper divisors (4724251).

930638441 is a wasteful number, since it uses less digits than its factorization.

930638441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724250.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 930638441 is about 30506.3672206312. The cubic root of 930638441 is about 976.3233193944.

The spelling of 930638441 in words is "nine hundred thirty million, six hundred thirty-eight thousand, four hundred forty-one".