3500040044 has 24 divisors (see below), whose sum is σ = 6339105360. Its totient is φ = 1688921024.

The previous prime is 3500040029. The next prime is 3500040079. The reversal of 3500040044 is 4400400053.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3500039998 and 3500040025.

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, 324482 + ... + 335094.

It is an arithmetic number, because the mean of its divisors is an integer number (264129390).

Almost surely, 2^3500040044 is an apocalyptic number.

It is an amenable number.

3500040044 is a deficient number, since it is larger than the sum of its proper divisors (2839065316).

3500040044 is a wasteful number, since it uses less digits than its factorization.

3500040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489 (or 13487 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3500040044 is about 59161.1362635979. The cubic root of 3500040044 is about 1518.3002762571.

Adding to 3500040044 its reverse (4400400053), we get a palindrome (7900440097).

The spelling of 3500040044 in words is "three billion, five hundred million, forty thousand, forty-four".