2730345420 has 48 divisors (see below), whose sum is σ = 8339966208. Its totient is φ = 661901760.

The previous prime is 2730345413. The next prime is 2730345439. The reversal of 2730345420 is 245430372.

It is a super-2 number, since 2×2730345420² = 14909572225029952800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2067784 + ... + 2069103.

It is an arithmetic number, because the mean of its divisors is an integer number (173749296).

Almost surely, 2^2730345420 is an apocalyptic number.

2730345420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2730345420 is an abundant number, since it is smaller than the sum of its proper divisors (5609620788).

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

2730345420 is a wasteful number, since it uses less digits than its factorization.

2730345420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136910 (or 4136908 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 2730345420 is about 52252.7072982826. The cubic root of 2730345420 is about 1397.6739299417.

Adding to 2730345420 its reverse (245430372), we get a palindrome (2975775792).

The spelling of 2730345420 in words is "two billion, seven hundred thirty million, three hundred forty-five thousand, four hundred twenty".