1040345279 has 2 divisors, whose sum is σ = 1040345280. Its totient is φ = 1040345278.

The previous prime is 1040345263. The next prime is 1040345287. The reversal of 1040345279 is 9725430401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040345279 - 2⁴ = 1040345263 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040345479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520172639 + 520172640.

It is an arithmetic number, because the mean of its divisors is an integer number (520172640).

Almost surely, 2^1040345279 is an apocalyptic number.

1040345279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040345279 is an equidigital number, since it uses as much as digits as its factorization.

1040345279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1040345279 is about 32254.3838725839. The cubic root of 1040345279 is about 1013.2715140636.

The spelling of 1040345279 in words is "one billion, forty million, three hundred forty-five thousand, two hundred seventy-nine".