1030400439 has 4 divisors (see below), whose sum is σ = 1373867256. Its totient is φ = 686933624.

The previous prime is 1030400407. The next prime is 1030400491. The reversal of 1030400439 is 9340040301.

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

It is a cyclic number.

It is not a de Polignac number, because 1030400439 - 2⁵ = 1030400407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030400339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171733404 + ... + 171733409.

It is an arithmetic number, because the mean of its divisors is an integer number (343466814).

Almost surely, 2^1030400439 is an apocalyptic number.

1030400439 is a deficient number, since it is larger than the sum of its proper divisors (343466817).

1030400439 is an equidigital number, since it uses as much as digits as its factorization.

1030400439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343466816.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1030400439 is about 32099.8510744209. The cubic root of 1030400439 is about 1010.0324921743.

The spelling of 1030400439 in words is "one billion, thirty million, four hundred thousand, four hundred thirty-nine".