4000000545 has 12 divisors (see below), whose sum is σ = 6933334356. Its totient is φ = 2133333600.

The previous prime is 4000000531. The next prime is 4000000553. The reversal of 4000000545 is 5450000004.

It is a happy number.

4000000545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2157788304 + 1842212241 = 46452^2 + 42921^2 .

It is not a de Polignac number, because 4000000545 - 2¹⁷ = 3999869473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44444406 + ... + 44444495.

It is an arithmetic number, because the mean of its divisors is an integer number (577777863).

Almost surely, 2^4000000545 is an apocalyptic number.

4000000545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4000000545 is a deficient number, since it is larger than the sum of its proper divisors (2933333811).

4000000545 is a wasteful number, since it uses less digits than its factorization.

4000000545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88888912 (or 88888909 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4000000545 is about 63245.5575119708. The cubic root of 4000000545 is about 1587.4011240627.

Adding to 4000000545 its reverse (5450000004), we get a palindrome (9450000549).

The spelling of 4000000545 in words is "four billion, five hundred forty-five", and thus it is an aban number.