1604913459 has 8 divisors (see below), whose sum is σ = 2142191760. Its totient is φ = 1068788736.

The previous prime is 1604913439. The next prime is 1604913473. The reversal of 1604913459 is 9543194061.

1604913459 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1604913459 - 2²⁷ = 1470695731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1604913459.

It is not an unprimeable number, because it can be changed into a prime (1604913439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285142 + ... + 290715.

It is an arithmetic number, because the mean of its divisors is an integer number (267773970).

Almost surely, 2^1604913459 is an apocalyptic number.

1604913459 is a deficient number, since it is larger than the sum of its proper divisors (537278301).

1604913459 is an equidigital number, since it uses as much as digits as its factorization.

1604913459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576789.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1604913459 is about 40061.3711572632. The cubic root of 1604913459 is about 1170.8031252578.

The spelling of 1604913459 in words is "one billion, six hundred four million, nine hundred thirteen thousand, four hundred fifty-nine".