1030400205 has 8 divisors (see below), whose sum is σ = 1648640352. Its totient is φ = 549546768.

The previous prime is 1030400171. The next prime is 1030400213. The reversal of 1030400205 is 5020040301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1030400205 - 2¹² = 1030396109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 68693347 = 1030400205 / (1 + 0 + 3 + 0 + 4 + 0 + 0 + 2 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34346659 + ... + 34346688.

It is an arithmetic number, because the mean of its divisors is an integer number (206080044).

Almost surely, 2^1030400205 is an apocalyptic number.

1030400205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1030400205 is a deficient number, since it is larger than the sum of its proper divisors (618240147).

1030400205 is an equidigital number, since it uses as much as digits as its factorization.

1030400205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68693355.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1030400205 is about 32099.8474295440. The cubic root of 1030400205 is about 1010.0324157161.

Adding to 1030400205 its reverse (5020040301), we get a palindrome (6050440506).

The spelling of 1030400205 in words is "one billion, thirty million, four hundred thousand, two hundred five".