730276243 has 4 divisors (see below), whose sum is σ = 762027408. Its totient is φ = 698525080.

The previous prime is 730276223. The next prime is 730276277. The reversal of 730276243 is 342672037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342672037 = 3089 ⋅110933.

It is a cyclic number.

It is not a de Polignac number, because 730276243 - 2²¹ = 728179091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730276199 and 730276208.

It is not an unprimeable number, because it can be changed into a prime (730276223) 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, 15875548 + ... + 15875593.

It is an arithmetic number, because the mean of its divisors is an integer number (190506852).

Almost surely, 2^730276243 is an apocalyptic number.

730276243 is a deficient number, since it is larger than the sum of its proper divisors (31751165).

730276243 is a wasteful number, since it uses less digits than its factorization.

730276243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31751164.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 730276243 is about 27023.6237947467. The cubic root of 730276243 is about 900.5248966917.

The spelling of 730276243 in words is "seven hundred thirty million, two hundred seventy-six thousand, two hundred forty-three".