1604022 has 32 divisors (see below), whose sum is σ = 3704064. Its totient is φ = 453600.

The previous prime is 1604021. The next prime is 1604051. The reversal of 1604022 is 2204061.

It is a junction number, because it is equal to n+sod(n) for n = 1603992 and 1604010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604021) 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, 7497 + ... + 7707.

It is an arithmetic number, because the mean of its divisors is an integer number (115752).

2^1604022 is an apocalyptic number.

It is a pronic number, being equal to 1266×1267.

1604022 is an abundant number, since it is smaller than the sum of its proper divisors (2100042).

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

1604022 is a wasteful number, since it uses less digits than its factorization.

1604022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1604022 is about 1266.4999013028. The cubic root of 1604022 is about 117.0586308522.

Adding to 1604022 its reverse (2204061), we get a palindrome (3808083).

The spelling of 1604022 in words is "one million, six hundred four thousand, twenty-two".