40573919 has 2 divisors, whose sum is σ = 40573920. Its totient is φ = 40573918.

The previous prime is 40573903. The next prime is 40573933. The reversal of 40573919 is 91937504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40573919 - 2⁴ = 40573903 is a prime.

It is a super-2 number, since 2×40573919² = 3292485806037122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40573319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20286959 + 20286960.

It is an arithmetic number, because the mean of its divisors is an integer number (20286960).

Almost surely, 2^40573919 is an apocalyptic number.

40573919 is a deficient number, since it is larger than the sum of its proper divisors (1).

40573919 is an equidigital number, since it uses as much as digits as its factorization.

40573919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 40573919 is about 6369.7660082612. The cubic root of 40573919 is about 343.6230745065.

The spelling of 40573919 in words is "forty million, five hundred seventy-three thousand, nine hundred nineteen".