4040357940 has 72 divisors (see below), whose sum is σ = 12364272648. Its totient is φ = 1067888640.

The previous prime is 4040357933. The next prime is 4040357941. The reversal of 4040357940 is 497530404.

4040357940 is a `hidden beast` number, since 4 + 0 + 40 + 3 + 579 + 40 = 666.

4040357940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 207014544 + 3833343396 = 14388^2 + 61914^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4040357895 and 4040357904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040357941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78981 + ... + 119660.

It is an arithmetic number, because the mean of its divisors is an integer number (171726009).

Almost surely, 2^4040357940 is an apocalyptic number.

It is an amenable number.

4040357940 is an abundant number, since it is smaller than the sum of its proper divisors (8323914708).

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

4040357940 is a wasteful number, since it uses less digits than its factorization.

4040357940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198769 (or 198764 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 4040357940 is about 63563.8099865010. The cubic root of 4040357940 is about 1592.7218834403.

The spelling of 4040357940 in words is "four billion, forty million, three hundred fifty-seven thousand, nine hundred forty".