1604007349 has 4 divisors (see below), whose sum is σ = 1833151264. Its totient is φ = 1374863436.

The previous prime is 1604007331. The next prime is 1604007359. The reversal of 1604007349 is 9437004061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9437004061 = 577 ⋅16355293.

It is a cyclic number.

It is not a de Polignac number, because 1604007349 - 2¹³ = 1603999157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604007329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114571947 + ... + 114571960.

It is an arithmetic number, because the mean of its divisors is an integer number (458287816).

Almost surely, 2^1604007349 is an apocalyptic number.

It is an amenable number.

1604007349 is a deficient number, since it is larger than the sum of its proper divisors (229143915).

1604007349 is an equidigital number, since it uses as much as digits as its factorization.

1604007349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229143914.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1604007349 is about 40050.0605367832. The cubic root of 1604007349 is about 1170.5827444998.

The spelling of 1604007349 in words is "one billion, six hundred four million, seven thousand, three hundred forty-nine".