4400155545 has 8 divisors (see below), whose sum is σ = 7040248896. Its totient is φ = 2346749616.

The previous prime is 4400155523. The next prime is 4400155561. The reversal of 4400155545 is 5455510044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4400155545 - 2²⁶ = 4333046681 is a prime.

It is a super-2 number, since 2×4400155545² = 38722737640388494050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146671837 + ... + 146671866.

It is an arithmetic number, because the mean of its divisors is an integer number (880031112).

Almost surely, 2^4400155545 is an apocalyptic number.

It is an amenable number.

4400155545 is a deficient number, since it is larger than the sum of its proper divisors (2640093351).

4400155545 is a wasteful number, since it uses less digits than its factorization.

4400155545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293343711.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 4400155545 is about 66333.6682612985. The cubic root of 4400155545 is about 1638.6618502657.

Adding to 4400155545 its reverse (5455510044), we get a palindrome (9855665589).

The spelling of 4400155545 in words is "four billion, four hundred million, one hundred fifty-five thousand, five hundred forty-five".