2043615420 has 576 divisors, whose sum is σ = 8265793536. Its totient is φ = 411505920.

The previous prime is 2043615367. The next prime is 2043615461. The reversal of 2043615420 is 245163402.

2043615420 is a `hidden beast` number, since 2 + 0 + 4 + 3 + 615 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16091397 + ... + 16091523.

It is an arithmetic number, because the mean of its divisors is an integer number (14350336).

Almost surely, 2^2043615420 is an apocalyptic number.

2043615420 is a gapful number since it is divisible by the number (20) 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 2043615420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4132896768).

2043615420 is an abundant number, since it is smaller than the sum of its proper divisors (6222178116).

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

2043615420 is a wasteful number, since it uses less digits than its factorization.

2043615420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2043615420 is about 45206.3648173573. The cubic root of 2043615420 is about 1269.0139327478.

Adding to 2043615420 its reverse (245163402), we get a palindrome (2288778822).

The spelling of 2043615420 in words is "two billion, forty-three million, six hundred fifteen thousand, four hundred twenty".