4040149991 has 8 divisors (see below), whose sum is σ = 4207787424. Its totient is φ = 3875588640.

The previous prime is 4040149957. The next prime is 4040149999. The reversal of 4040149991 is 1999410404.

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 not a de Polignac number, because 4040149991 - 2¹⁰ = 4040148967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040149999) 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, 766340 + ... + 771593.

It is an arithmetic number, because the mean of its divisors is an integer number (525973428).

Almost surely, 2^4040149991 is an apocalyptic number.

4040149991 is a deficient number, since it is larger than the sum of its proper divisors (167637433).

4040149991 is a wasteful number, since it uses less digits than its factorization.

4040149991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538041.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 4040149991 is about 63562.1742154876. The cubic root of 4040149991 is about 1592.6945582536.

The spelling of 4040149991 in words is "four billion, forty million, one hundred forty-nine thousand, nine hundred ninety-one".