4006941049 has 4 divisors (see below), whose sum is σ = 4145111460. Its totient is φ = 3868770640.

The previous prime is 4006941047. The next prime is 4006941061. The reversal of 4006941049 is 9401496004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1777212649 + 2229728400 = 42157^2 + 47220^2 .

It is a cyclic number.

It is not a de Polignac number, because 4006941049 - 2¹ = 4006941047 is a prime.

It is a super-2 number, since 2×4006941049² = 32111153140322440802, 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 = 4006940999 and 4006941017.

It is not an unprimeable number, because it can be changed into a prime (4006941041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69085162 + ... + 69085219.

It is an arithmetic number, because the mean of its divisors is an integer number (1036277865).

Almost surely, 2^4006941049 is an apocalyptic number.

It is an amenable number.

4006941049 is a deficient number, since it is larger than the sum of its proper divisors (138170411).

4006941049 is a wasteful number, since it uses less digits than its factorization.

4006941049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138170410.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 4006941049 is about 63300.4032293634. The cubic root of 4006941049 is about 1588.3187070890.

It can be divided in two parts, 40069 and 41049, that added together give a palindrome (81118).

The spelling of 4006941049 in words is "four billion, six million, nine hundred forty-one thousand, forty-nine".