2730342745 has 8 divisors (see below), whose sum is σ = 3528443016. Its totient is φ = 2016253056.

The previous prime is 2730342691. The next prime is 2730342757. The reversal of 2730342745 is 5472430372.

It can be written as a sum of positive squares in 4 ways, for example, as 523128384 + 2207214361 = 22872^2 + 46981^2 .

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 2730342745 - 2²¹ = 2728245593 is a prime.

It is a Duffinian 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, 21002572 + ... + 21002701.

It is an arithmetic number, because the mean of its divisors is an integer number (441055377).

Almost surely, 2^2730342745 is an apocalyptic number.

It is an amenable number.

2730342745 is a deficient number, since it is larger than the sum of its proper divisors (798100271).

2730342745 is a wasteful number, since it uses less digits than its factorization.

2730342745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42005291.

The product of its (nonzero) digits is 141120, while the sum is 37.

The square root of 2730342745 is about 52252.6817015165. The cubic root of 2730342745 is about 1397.6734734941.

The spelling of 2730342745 in words is "two billion, seven hundred thirty million, three hundred forty-two thousand, seven hundred forty-five".