4020739578 has 12 divisors (see below), whose sum is σ = 8711602458. Its totient is φ = 1340246520.

The previous prime is 4020739577. The next prime is 4020739607. The reversal of 4020739578 is 8759370204.

4020739578 is a `hidden beast` number, since 4 + 0 + 2 + 0 + 73 + 9 + 578 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3582381609 + 438357969 = 59853^2 + 20937^2 .

It is not an unprimeable number, because it can be changed into a prime (4020739573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111687193 + ... + 111687228.

Almost surely, 2^4020739578 is an apocalyptic number.

4020739578 is an abundant number, since it is smaller than the sum of its proper divisors (4690862880).

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

4020739578 is a wasteful number, since it uses less digits than its factorization.

4020739578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223374429 (or 223374426 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 4020739578 is about 63409.3019832264. The cubic root of 4020739578 is about 1590.1398263171.

The spelling of 4020739578 in words is "four billion, twenty million, seven hundred thirty-nine thousand, five hundred seventy-eight".