2620442 has 16 divisors (see below), whose sum is σ = 4514400. Its totient is φ = 1128240.

The previous prime is 2620441. The next prime is 2620477. The reversal of 2620442 is 2440262.

It is not an unprimeable number, because it can be changed into a prime (2620441) 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 in 7 ways as a sum of consecutive naturals, for example, 2717 + ... + 3552.

It is an arithmetic number, because the mean of its divisors is an integer number (282150).

2^2620442 is an apocalyptic number.

2620442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2620442 is a deficient number, since it is larger than the sum of its proper divisors (1893958).

2620442 is a wasteful number, since it uses less digits than its factorization.

2620442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2620442 is about 1618.7779341219. Note that the first 3 decimals coincide. The cubic root of 2620442 is about 137.8663201723.

The spelling of 2620442 in words is "two million, six hundred twenty thousand, four hundred forty-two".