4040040523 has 8 divisors (see below), whose sum is σ = 4162517568. Its totient is φ = 3919085184.

The previous prime is 4040040503. The next prime is 4040040527. The reversal of 4040040523 is 3250400404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4040040523 is a prime.

It is a super-2 number, since 2×4040040523² = 32643854854964227058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4040040494 and 4040040503.

It is not an unprimeable number, because it can be changed into a prime (4040040527) 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, 375036 + ... + 385657.

It is an arithmetic number, because the mean of its divisors is an integer number (520314696).

Almost surely, 2^4040040523 is an apocalyptic number.

4040040523 is a deficient number, since it is larger than the sum of its proper divisors (122477045).

4040040523 is a wasteful number, since it uses less digits than its factorization.

4040040523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760853.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4040040523 is about 63561.3131000296. The cubic root of 4040040523 is about 1592.6801734195.

Adding to 4040040523 its reverse (3250400404), we get a palindrome (7290440927).

The spelling of 4040040523 in words is "four billion, forty million, forty thousand, five hundred twenty-three".