40093219 has 2 divisors, whose sum is σ = 40093220. Its totient is φ = 40093218.

The previous prime is 40093217. The next prime is 40093223. The reversal of 40093219 is 91239004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40093219 - 2¹ = 40093217 is a prime.

It is a super-2 number, since 2×40093219² = 3214932419563922, which contains 22 as substring.

Together with 40093217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40093217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20046609 + 20046610.

It is an arithmetic number, because the mean of its divisors is an integer number (20046610).

Almost surely, 2^40093219 is an apocalyptic number.

40093219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40093219 is an equidigital number, since it uses as much as digits as its factorization.

40093219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 40093219 is about 6331.9206406903. The cubic root of 40093219 is about 342.2606536357.

The spelling of 40093219 in words is "forty million, ninety-three thousand, two hundred nineteen".