4040851720 has 32 divisors (see below), whose sum is σ = 9626736600. Its totient is φ = 1521261568.

The previous prime is 4040851687. The next prime is 4040851721. The reversal of 4040851720 is 271580404.

It can be written as a sum of positive squares in 4 ways, for example, as 4010182276 + 30669444 = 63326^2 + 5538^2 .

It is not an unprimeable number, because it can be changed into a prime (4040851721) 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, 2970535 + ... + 2971894.

Almost surely, 2^4040851720 is an apocalyptic number.

4040851720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040851720 is an abundant number, since it is smaller than the sum of its proper divisors (5585884880).

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

4040851720 is a wasteful number, since it uses less digits than its factorization.

4040851720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942457 (or 5942453 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 4040851720 is about 63567.6939962431. The cubic root of 4040851720 is about 1592.7867640101.

The spelling of 4040851720 in words is "four billion, forty million, eight hundred fifty-one thousand, seven hundred twenty".