4391354420 has 24 divisors (see below), whose sum is σ = 9348174024. Its totient is φ = 1732478976.

The previous prime is 4391354411. The next prime is 4391354447. The reversal of 4391354420 is 244531934.

It can be written as a sum of positive squares in 4 ways, for example, as 345885604 + 4045468816 = 18598^2 + 63604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502429 + ... + 1505348.

It is an arithmetic number, because the mean of its divisors is an integer number (389507251).

Almost surely, 2^4391354420 is an apocalyptic number.

It is an amenable number.

4391354420 is an abundant number, since it is smaller than the sum of its proper divisors (4956819604).

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

4391354420 is a wasteful number, since it uses less digits than its factorization.

4391354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007859 (or 3007857 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 4391354420 is about 66267.2952518812. The cubic root of 4391354420 is about 1637.5685787568.

The spelling of 4391354420 in words is "four billion, three hundred ninety-one million, three hundred fifty-four thousand, four hundred twenty".