4020765949 has 8 divisors (see below), whose sum is σ = 4059332640. Its totient is φ = 3982230000.

The previous prime is 4020765943. The next prime is 4020765967. The reversal of 4020765949 is 9495670204.

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

It is a cyclic number.

It is not a de Polignac number, because 4020765949 - 2¹³ = 4020757757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4020765899 and 4020765908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020765943) 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, 322074 + ... + 334324.

It is an arithmetic number, because the mean of its divisors is an integer number (507416580).

Almost surely, 2^4020765949 is an apocalyptic number.

It is an amenable number.

4020765949 is a deficient number, since it is larger than the sum of its proper divisors (38566691).

4020765949 is a wasteful number, since it uses less digits than its factorization.

4020765949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15371.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 4020765949 is about 63409.5099255624. The cubic root of 4020765949 is about 1590.1433027493.

The spelling of 4020765949 in words is "four billion, twenty million, seven hundred sixty-five thousand, nine hundred forty-nine".