2421790 has 32 divisors (see below), whose sum is σ = 5158080. Its totient is φ = 801024.

The previous prime is 2421781. The next prime is 2421791. The reversal of 2421790 is 971242.

2421790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434 + ... + 2626.

It is an arithmetic number, because the mean of its divisors is an integer number (161190).

2^2421790 is an apocalyptic number.

2421790 is an abundant number, since it is smaller than the sum of its proper divisors (2736290).

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

2421790 is a wasteful number, since it uses less digits than its factorization.

2421790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2421790 is about 1556.2101400518. The cubic root of 2421790 is about 134.2905627817.

The spelling of 2421790 in words is "two million, four hundred twenty-one thousand, seven hundred ninety".