2730920429 has 4 divisors (see below), whose sum is σ = 2737941180. Its totient is φ = 2723899680.

The previous prime is 2730920389. The next prime is 2730920431. The reversal of 2730920429 is 9240290372.

2730920429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1883994025 + 846926404 = 43405^2 + 29102^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730920429 - 2⁸ = 2730920173 is a prime.

It is a super-3 number, since 3×2730920429³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2730920392 and 2730920401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730950429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509792 + ... + 3510569.

It is an arithmetic number, because the mean of its divisors is an integer number (684485295).

Almost surely, 2^2730920429 is an apocalyptic number.

It is an amenable number.

2730920429 is a deficient number, since it is larger than the sum of its proper divisors (7020751).

2730920429 is an equidigital number, since it uses as much as digits as its factorization.

2730920429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020750.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2730920429 is about 52258.2092020000. The cubic root of 2730920429 is about 1397.7720394668.

The spelling of 2730920429 in words is "two billion, seven hundred thirty million, nine hundred twenty thousand, four hundred twenty-nine".