40504019 has 2 divisors, whose sum is σ = 40504020. Its totient is φ = 40504018.

The previous prime is 40504003. The next prime is 40504049. The reversal of 40504019 is 91040504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40504019 - 2⁴ = 40504003 is a prime.

It is a super-3 number, since 3×40504019³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 40503985 and 40504003.

It is not a weakly prime, because it can be changed into another prime (40504049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252009 + 20252010.

It is an arithmetic number, because the mean of its divisors is an integer number (20252010).

Almost surely, 2^40504019 is an apocalyptic number.

40504019 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504019 is an equidigital number, since it uses as much as digits as its factorization.

40504019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 40504019 is about 6364.2767853072. The cubic root of 40504019 is about 343.4256319126.

The spelling of 40504019 in words is "forty million, five hundred four thousand, nineteen".