4040003505 has 32 divisors (see below), whose sum is σ = 6910735104. Its totient is φ = 2008221696.

The previous prime is 4040003491. The next prime is 4040003507. The reversal of 4040003505 is 5053000404.

It is a happy number.

It is not a de Polignac number, because 4040003505 - 2⁴ = 4040003489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4040003507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50644 + ... + 103173.

It is an arithmetic number, because the mean of its divisors is an integer number (215960472).

Almost surely, 2^4040003505 is an apocalyptic number.

It is an amenable number.

4040003505 is a deficient number, since it is larger than the sum of its proper divisors (2870731599).

4040003505 is a wasteful number, since it uses less digits than its factorization.

4040003505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153945.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4040003505 is about 63561.0219002181. The cubic root of 4040003505 is about 1592.6753089456.

Adding to 4040003505 its reverse (5053000404), we get a palindrome (9093003909).

The spelling of 4040003505 in words is "four billion, forty million, three thousand, five hundred five".