2621004 has 12 divisors (see below), whose sum is σ = 6115704. Its totient is φ = 873664.

The previous prime is 2620999. The next prime is 2621023. The reversal of 2621004 is 4001262.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109197 + ... + 109220.

It is an arithmetic number, because the mean of its divisors is an integer number (509642).

2^2621004 is an apocalyptic number.

It is an amenable number.

2621004 is an abundant number, since it is smaller than the sum of its proper divisors (3494700).

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

2621004 is a wasteful number, since it uses less digits than its factorization.

2621004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218424 (or 218422 counting only the distinct ones).

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

The square root of 2621004 is about 1618.9515125537. The cubic root of 2621004 is about 137.8761754224.

Adding to 2621004 its reverse (4001262), we get a palindrome (6622266).

The spelling of 2621004 in words is "two million, six hundred twenty-one thousand, four".