4045723842 has 16 divisors (see below), whose sum is σ = 8092541952. Its totient is φ = 1348392240.

The previous prime is 4045723769. The next prime is 4045723849. The reversal of 4045723842 is 2483275404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045723842.

It is not an unprimeable number, because it can be changed into a prime (4045723849) 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, 7167 + ... + 90237.

It is an arithmetic number, because the mean of its divisors is an integer number (505783872).

Almost surely, 2^4045723842 is an apocalyptic number.

4045723842 is an abundant number, since it is smaller than the sum of its proper divisors (4046818110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4045723842 is a wasteful number, since it uses less digits than its factorization.

4045723842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91193.

The product of its (nonzero) digits is 215040, while the sum is 39.

The square root of 4045723842 is about 63606.0047637014. The cubic root of 4045723842 is about 1593.4266567168.

The spelling of 4045723842 in words is "four billion, forty-five million, seven hundred twenty-three thousand, eight hundred forty-two".