1604234 has 8 divisors (see below), whose sum is σ = 2411748. Its totient is φ = 800320.

The previous prime is 1604231. The next prime is 1604237. The reversal of 1604234 is 4324061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1604231) and next prime (1604237).

It can be written as a sum of positive squares in 2 ways, for example, as 1570009 + 34225 = 1253^2 + 185^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1604231) 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, 1154 + ... + 2130.

2^1604234 is an apocalyptic number.

1604234 is a deficient number, since it is larger than the sum of its proper divisors (807514).

1604234 is an equidigital number, since it uses as much as digits as its factorization.

1604234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1604234 is about 1266.5835937671. The cubic root of 1604234 is about 117.0637877509.

Adding to 1604234 its reverse (4324061), we get a palindrome (5928295).

The spelling of 1604234 in words is "one million, six hundred four thousand, two hundred thirty-four".