2240020 has 24 divisors (see below), whose sum is σ = 4806144. Its totient is φ = 876576.

The previous prime is 2240003. The next prime is 2240023. The reversal of 2240020 is 200422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2239979 and 2240006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240023) 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, 252 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (200256).

2^2240020 is an apocalyptic number.

2240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240020 is an abundant number, since it is smaller than the sum of its proper divisors (2566124).

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

2240020 is a wasteful number, since it uses less digits than its factorization.

2240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2240020 is about 1496.6696362257. The cubic root of 2240020 is about 130.8430418190.

Adding to 2240020 its reverse (200422), we get a palindrome (2440442).

The spelling of 2240020 in words is "two million, two hundred forty thousand, twenty".