2620004 has 6 divisors (see below), whose sum is σ = 4585014. Its totient is φ = 1310000.

The previous prime is 2620003. The next prime is 2620019. The reversal of 2620004 is 4000262.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 792100 = 1352^2 + 890^2 .

It is not an unprimeable number, because it can be changed into a prime (2620003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327497 + ... + 327504.

It is an arithmetic number, because the mean of its divisors is an integer number (764169).

2^2620004 is an apocalyptic number.

It is an amenable number.

2620004 is a deficient number, since it is larger than the sum of its proper divisors (1965010).

2620004 is a wasteful number, since it uses less digits than its factorization.

2620004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655005 (or 655003 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2620004 is about 1618.6426412275. The cubic root of 2620004 is about 137.8586384132.

Adding to 2620004 its reverse (4000262), we get a palindrome (6620266).

The spelling of 2620004 in words is "two million, six hundred twenty thousand, four".