4000020774 has 16 divisors (see below), whose sum is σ = 8006206320. Its totient is φ = 1332312800.

The previous prime is 4000020751. The next prime is 4000020833. The reversal of 4000020774 is 4770200004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248409 + ... + 264020.

It is an arithmetic number, because the mean of its divisors is an integer number (500387895).

Almost surely, 2^4000020774 is an apocalyptic number.

4000020774 is an abundant number, since it is smaller than the sum of its proper divisors (4006185546).

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

4000020774 is a wasteful number, since it uses less digits than its factorization.

4000020774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513735.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 4000020774 is about 63245.7174360446. The cubic root of 4000020774 is about 1587.4038000192.

Adding to 4000020774 its reverse (4770200004), we get a palindrome (8770220778).

The spelling of 4000020774 in words is "four billion, twenty thousand, seven hundred seventy-four".