4020434651 has 2 divisors, whose sum is σ = 4020434652. Its totient is φ = 4020434650.

The previous prime is 4020434641. The next prime is 4020434659. The reversal of 4020434651 is 1564340204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020434651 is a prime.

It is a super-2 number, since 2×4020434651² = 32327789565922983602, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4020434659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010217325 + 2010217326.

It is an arithmetic number, because the mean of its divisors is an integer number (2010217326).

Almost surely, 2^4020434651 is an apocalyptic number.

4020434651 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020434651 is an equidigital number, since it uses as much as digits as its factorization.

4020434651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 4020434651 is about 63406.8975033474. The cubic root of 4020434651 is about 1590.0996273425.

Adding to 4020434651 its reverse (1564340204), we get a palindrome (5584774855).

The spelling of 4020434651 in words is "four billion, twenty million, four hundred thirty-four thousand, six hundred fifty-one".