1622004 has 24 divisors (see below), whose sum is σ = 4007808. Its totient is φ = 508800.

The previous prime is 1621993. The next prime is 1622009. The reversal of 1622004 is 4002261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622009) 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, 3772 + ... + 4179.

It is an arithmetic number, because the mean of its divisors is an integer number (166992).

2^1622004 is an apocalyptic number.

It is an amenable number.

1622004 is an abundant number, since it is smaller than the sum of its proper divisors (2385804).

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

1622004 is a wasteful number, since it uses less digits than its factorization.

1622004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975 (or 7973 counting only the distinct ones).

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

The square root of 1622004 is about 1273.5792083730. The cubic root of 1622004 is about 117.4944376422.

Adding to 1622004 its reverse (4002261), we get a palindrome (5624265).

The spelling of 1622004 in words is "one million, six hundred twenty-two thousand, four".