1604401233 has 16 divisors (see below), whose sum is σ = 2179132800. Its totient is φ = 1049819904.

The previous prime is 1604401223. The next prime is 1604401241. The reversal of 1604401233 is 3321044061.

It is not a de Polignac number, because 1604401233 - 2¹⁶ = 1604335697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1604401223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11943 + ... + 57891.

It is an arithmetic number, because the mean of its divisors is an integer number (136195800).

Almost surely, 2^1604401233 is an apocalyptic number.

It is an amenable number.

1604401233 is a deficient number, since it is larger than the sum of its proper divisors (574731567).

1604401233 is a wasteful number, since it uses less digits than its factorization.

1604401233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46168.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1604401233 is about 40054.9776307515. The cubic root of 1604401233 is about 1170.6785537196.

Adding to 1604401233 its reverse (3321044061), we get a palindrome (4925445294).

The spelling of 1604401233 in words is "one billion, six hundred four million, four hundred one thousand, two hundred thirty-three".