4005501040 has 40 divisors (see below), whose sum is σ = 9364275648. Its totient is φ = 1593342720.

The previous prime is 4005501013. The next prime is 4005501089. The reversal of 4005501040 is 401055004.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4005500999 and 4005501017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123832 + ... + 152791.

Almost surely, 2^4005501040 is an apocalyptic number.

4005501040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4005501040 is an abundant number, since it is smaller than the sum of its proper divisors (5358774608).

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

4005501040 is a wasteful number, since it uses less digits than its factorization.

4005501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276817 (or 276811 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4005501040 is about 63289.0278010336. The cubic root of 4005501040 is about 1588.1284150225.

Adding to 4005501040 its reverse (401055004), we get a palindrome (4406556044).

The spelling of 4005501040 in words is "four billion, five million, five hundred one thousand, forty".