1604204007 has 32 divisors (see below), whose sum is σ = 2513064960. Its totient is φ = 891137280.

The previous prime is 1604203973. The next prime is 1604204009. The reversal of 1604204007 is 7004024061.

It is not a de Polignac number, because 1604204007 - 2⁶ = 1604203943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604204009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249094 + ... + 255452.

It is an arithmetic number, because the mean of its divisors is an integer number (78533280).

Almost surely, 2^1604204007 is an apocalyptic number.

1604204007 is a deficient number, since it is larger than the sum of its proper divisors (908860953).

1604204007 is a wasteful number, since it uses less digits than its factorization.

1604204007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1604204007 is about 40052.5156138787. The cubic root of 1604204007 is about 1170.6305819892.

Adding to 1604204007 its reverse (7004024061), we get a palindrome (8608228068).

The spelling of 1604204007 in words is "one billion, six hundred four million, two hundred four thousand, seven".