2040323420 has 24 divisors (see below), whose sum is σ = 4432428000. Its totient is φ = 787986752.

The previous prime is 2040323419. The next prime is 2040323423. The reversal of 2040323420 is 243230402.

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 = 2040323392 and 2040323401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040323423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758320 + ... + 1759479.

It is an arithmetic number, because the mean of its divisors is an integer number (184684500).

Almost surely, 2^2040323420 is an apocalyptic number.

2040323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040323420 is an abundant number, since it is smaller than the sum of its proper divisors (2392104580).

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

2040323420 is a wasteful number, since it uses less digits than its factorization.

2040323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517837 (or 3517835 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2040323420 is about 45169.9393402294. The cubic root of 2040323420 is about 1268.3321607890.

Adding to 2040323420 its reverse (243230402), we get a palindrome (2283553822).

The spelling of 2040323420 in words is "two billion, forty million, three hundred twenty-three thousand, four hundred twenty".