2390420 has 24 divisors (see below), whose sum is σ = 5128704. Its totient is φ = 935456.

The previous prime is 2390417. The next prime is 2390429. The reversal of 2390420 is 240932.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2390392 and 2390401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (213696).

2^2390420 is an apocalyptic number.

2390420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2390420 is an abundant number, since it is smaller than the sum of its proper divisors (2738284).

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

2390420 is a wasteful number, since it uses less digits than its factorization.

2390420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2597 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2390420 is about 1546.0983151145. The cubic root of 2390420 is about 133.7082089133.

The spelling of 2390420 in words is "two million, three hundred ninety thousand, four hundred twenty".