40455419 has 2 divisors, whose sum is σ = 40455420. Its totient is φ = 40455418.

The previous prime is 40455407. The next prime is 40455421. The reversal of 40455419 is 91455404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40455419 is a prime.

It is a super-2 number, since 2×40455419² = 3273281852931122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 40455421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40455119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227709 + 20227710.

It is an arithmetic number, because the mean of its divisors is an integer number (20227710).

Almost surely, 2^40455419 is an apocalyptic number.

40455419 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455419 is an equidigital number, since it uses as much as digits as its factorization.

40455419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 40455419 is about 6360.4574521020. The cubic root of 40455419 is about 343.2882203165.

The spelling of 40455419 in words is "forty million, four hundred fifty-five thousand, four hundred nineteen".