4405420991 has 2 divisors, whose sum is σ = 4405420992. Its totient is φ = 4405420990.

The previous prime is 4405420979. The next prime is 4405421011. The reversal of 4405420991 is 1990245044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4405420991 - 2⁶ = 4405420927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4405420961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202710495 + 2202710496.

It is an arithmetic number, because the mean of its divisors is an integer number (2202710496).

Almost surely, 2^4405420991 is an apocalyptic number.

4405420991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405420991 is an equidigital number, since it uses as much as digits as its factorization.

4405420991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 4405420991 is about 66373.3454859705. The cubic root of 4405420991 is about 1639.3152245994.

The spelling of 4405420991 in words is "four billion, four hundred five million, four hundred twenty thousand, nine hundred ninety-one".