1024100405 has 4 divisors (see below), whose sum is σ = 1228920492. Its totient is φ = 819280320.

The previous prime is 1024100401. The next prime is 1024100411. The reversal of 1024100405 is 5040014201.

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 513611569 + 510488836 = 22663^2 + 22594^2 .

It is not a de Polignac number, because 1024100405 - 2² = 1024100401 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 (1024100401) 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, 102410036 + ... + 102410045.

It is an arithmetic number, because the mean of its divisors is an integer number (307230123).

Almost surely, 2^1024100405 is an apocalyptic number.

It is an amenable number.

1024100405 is a deficient number, since it is larger than the sum of its proper divisors (204820087).

1024100405 is an equidigital number, since it uses as much as digits as its factorization.

1024100405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204820086.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1024100405 is about 32001.5687896703. The cubic root of 1024100405 is about 1007.9697821655.

Adding to 1024100405 its reverse (5040014201), we get a palindrome (6064114606).

The spelling of 1024100405 in words is "one billion, twenty-four million, one hundred thousand, four hundred five".