2043403020 has 72 divisors (see below), whose sum is σ = 6330227904. Its totient is φ = 533311488.

The previous prime is 2043403003. The next prime is 2043403031. The reversal of 2043403020 is 203043402.

2043403020 is a `hidden beast` number, since 20 + 4 + 340 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2043402984 and 2043403002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112309 + ... + 129228.

It is an arithmetic number, because the mean of its divisors is an integer number (87919832).

Almost surely, 2^2043403020 is an apocalyptic number.

2043403020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043403020 is an abundant number, since it is smaller than the sum of its proper divisors (4286824884).

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

2043403020 is a wasteful number, since it uses less digits than its factorization.

2043403020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241599 (or 241594 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2043403020 is about 45204.0155295965. The cubic root of 2043403020 is about 1268.9699668928.

Adding to 2043403020 its reverse (203043402), we get a palindrome (2246446422).

The spelling of 2043403020 in words is "two billion, forty-three million, four hundred three thousand, twenty".