2621420 has 12 divisors (see below), whose sum is σ = 5505024. Its totient is φ = 1048560.

The previous prime is 2621387. The next prime is 2621431. The reversal of 2621420 is 241262.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65516 + ... + 65555.

It is an arithmetic number, because the mean of its divisors is an integer number (458752).

2^2621420 is an apocalyptic number.

2621420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621420 is an abundant number, since it is smaller than the sum of its proper divisors (2883604).

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

2621420 is a wasteful number, since it uses less digits than its factorization.

2621420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131080 (or 131078 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2621420 is about 1619.0799856709. The cubic root of 2621420 is about 137.8834695045.

Adding to 2621420 its reverse (241262), we get a palindrome (2862682).

The spelling of 2621420 in words is "two million, six hundred twenty-one thousand, four hundred twenty".