2043453412 has 192 divisors, whose sum is σ = 5036064768. Its totient is φ = 699840000.

The previous prime is 2043453371. The next prime is 2043453413. The reversal of 2043453412 is 2143543402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2043453413) 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 63 ways as a sum of consecutive naturals, for example, 12536443 + ... + 12536605.

It is an arithmetic number, because the mean of its divisors is an integer number (26229504).

Almost surely, 2^2043453412 is an apocalyptic number.

2043453412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043453412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518032384).

2043453412 is an abundant number, since it is smaller than the sum of its proper divisors (2992611356).

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

2043453412 is a wasteful number, since it uses less digits than its factorization.

2043453412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2043453412 is about 45204.5729102709. The cubic root of 2043453412 is about 1268.9803980882.

Adding to 2043453412 its reverse (2143543402), we get a palindrome (4186996814).

The spelling of 2043453412 in words is "two billion, forty-three million, four hundred fifty-three thousand, four hundred twelve".