1404630505 has 8 divisors (see below), whose sum is σ = 1685914632. Its totient is φ = 1123465728.

The previous prime is 1404630503. The next prime is 1404630509. The reversal of 1404630505 is 5050364041.

It can be written as a sum of positive squares in 4 ways, for example, as 494039529 + 910590976 = 22227^2 + 30176^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1404630505 - 2¹ = 1404630503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404630503) 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 7 ways as a sum of consecutive naturals, for example, 1494 + ... + 53023.

It is an arithmetic number, because the mean of its divisors is an integer number (210739329).

Almost surely, 2^1404630505 is an apocalyptic number.

It is an amenable number.

1404630505 is a deficient number, since it is larger than the sum of its proper divisors (281284127).

1404630505 is an equidigital number, since it uses as much as digits as its factorization.

1404630505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59675.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1404630505 is about 37478.4005128287. The cubic root of 1404630505 is about 1119.9209406886.

Adding to 1404630505 its reverse (5050364041), we get a palindrome (6454994546).

It can be divided in two parts, 14046 and 30505, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 1404630505 in words is "one billion, four hundred four million, six hundred thirty thousand, five hundred five".