1340224273 has 2 divisors, whose sum is σ = 1340224274. Its totient is φ = 1340224272.

The previous prime is 1340224219. The next prime is 1340224309. The reversal of 1340224273 is 3724220431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945685504 + 394538769 = 30752^2 + 19863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340224273 - 2²⁵ = 1306669841 is a prime.

It is a super-2 number, since 2×1340224273² = 3592402203876757058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1340224073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670112136 + 670112137.

It is an arithmetic number, because the mean of its divisors is an integer number (670112137).

Almost surely, 2^1340224273 is an apocalyptic number.

It is an amenable number.

1340224273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340224273 is an equidigital number, since it uses as much as digits as its factorization.

1340224273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 1340224273 is about 36609.0736430192. The cubic root of 1340224273 is about 1102.5352742625.

It can be divided in two parts, 13402 and 24273, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 1340224273 in words is "one billion, three hundred forty million, two hundred twenty-four thousand, two hundred seventy-three".