4000344155 has 8 divisors (see below), whose sum is σ = 4866172512. Its totient is φ = 3156435648.

The previous prime is 4000344121. The next prime is 4000344163. The reversal of 4000344155 is 5514430004.

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 4000344155 - 2¹⁸ = 4000082011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5479559 + ... + 5480288.

It is an arithmetic number, because the mean of its divisors is an integer number (608271564).

Almost surely, 2^4000344155 is an apocalyptic number.

4000344155 is a deficient number, since it is larger than the sum of its proper divisors (865828357).

4000344155 is a wasteful number, since it uses less digits than its factorization.

4000344155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10959925.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4000344155 is about 63248.2739290172. The cubic root of 4000344155 is about 1587.4465766633.

Adding to 4000344155 its reverse (5514430004), we get a palindrome (9514774159).

The spelling of 4000344155 in words is "four billion, three hundred forty-four thousand, one hundred fifty-five".