2621442 has 16 divisors (see below), whose sum is σ = 5321952. Its totient is φ = 860640.

The previous prime is 2621431. The next prime is 2621447. The reversal of 2621442 is 2441262.

It is not an unprimeable number, because it can be changed into a prime (2621447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (332622).

2^2621442 is an apocalyptic number.

2621442 is an abundant number, since it is smaller than the sum of its proper divisors (2700510).

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

2621442 is a wasteful number, since it uses less digits than its factorization.

2621442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593.

The product of its digits is 768, while the sum is 21.

The square root of 2621442 is about 1619.0867796384. The cubic root of 2621442 is about 137.8838552277.

It can be divided in two parts, 262144 and 2, that multiplied together give a 19-th power (524288 = 2¹⁹).

The spelling of 2621442 in words is "two million, six hundred twenty-one thousand, four hundred forty-two".