1604922 has 16 divisors (see below), whose sum is σ = 3501792. Its totient is φ = 486320.

The previous prime is 1604857. The next prime is 1604923. The reversal of 1604922 is 2294061.

It is a super-3 number, since 3×1604922³ = 12401752093331956344, which contains 333 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 1604892 and 1604901.

It is not an unprimeable number, because it can be changed into a prime (1604923) 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, 12093 + ... + 12224.

It is an arithmetic number, because the mean of its divisors is an integer number (218862).

2^1604922 is an apocalyptic number.

1604922 is an abundant number, since it is smaller than the sum of its proper divisors (1896870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604922 is a wasteful number, since it uses less digits than its factorization.

1604922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24333.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1604922 is about 1266.8551614135. The cubic root of 1604922 is about 117.0805202174.

Adding to 1604922 its reverse (2294061), we get a palindrome (3898983).

The spelling of 1604922 in words is "one million, six hundred four thousand, nine hundred twenty-two".