40303019 has 2 divisors, whose sum is σ = 40303020. Its totient is φ = 40303018.

The previous prime is 40302991. The next prime is 40303031. The reversal of 40303019 is 91030304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40303019 - 2²⁰ = 39254443 is a prime.

It is a super-2 number, since 2×40303019² = 3248666681028722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40303049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151509 + 20151510.

It is an arithmetic number, because the mean of its divisors is an integer number (20151510).

Almost surely, 2^40303019 is an apocalyptic number.

40303019 is a deficient number, since it is larger than the sum of its proper divisors (1).

40303019 is an equidigital number, since it uses as much as digits as its factorization.

40303019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 40303019 is about 6348.4658776747. The cubic root of 40303019 is about 342.8566097627.

The spelling of 40303019 in words is "forty million, three hundred three thousand, nineteen".