1489415405 has 16 divisors (see below), whose sum is σ = 1832565168. Its totient is φ = 1161408000.

The previous prime is 1489415399. The next prime is 1489415413. The reversal of 1489415405 is 5045149841.

It can be written as a sum of positive squares in 8 ways, for example, as 89832484 + 1399582921 = 9478^2 + 37411^2 .

It is not a de Polignac number, because 1489415405 - 2⁶ = 1489415341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 280475 + ... + 285735.

It is an arithmetic number, because the mean of its divisors is an integer number (114535323).

Almost surely, 2^1489415405 is an apocalyptic number.

It is an amenable number.

1489415405 is a deficient number, since it is larger than the sum of its proper divisors (343149763).

1489415405 is a wasteful number, since it uses less digits than its factorization.

1489415405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 1489415405 is about 38592.9450158964. The cubic root of 1489415405 is about 1142.0153651921.

The spelling of 1489415405 in words is "one billion, four hundred eighty-nine million, four hundred fifteen thousand, four hundred five".