2420790 has 64 divisors (see below), whose sum is σ = 6359040. Its totient is φ = 587520.

The previous prime is 2420779. The next prime is 2420801. The reversal of 2420790 is 970242.

It is an interprime number because it is at equal distance from previous prime (2420779) and next prime (2420801).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2420790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17602 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (99360).

2^2420790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2420790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3179520).

2420790 is an abundant number, since it is smaller than the sum of its proper divisors (3938250).

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

2420790 is a wasteful number, since it uses less digits than its factorization.

2420790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2420790 is about 1555.8888135082. Note that the first 4 decimals coincide. The cubic root of 2420790 is about 134.2720765861.

The spelling of 2420790 in words is "two million, four hundred twenty thousand, seven hundred ninety".