40568019 has 8 divisors (see below), whose sum is σ = 54648720. Its totient is φ = 26766336.

The previous prime is 40568009. The next prime is 40568039. The reversal of 40568019 is 91086504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40568019 - 2¹¹ = 40565971 is a prime.

It is a super-2 number, since 2×40568019² = 3291528331168722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40568009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69414 + ... + 69995.

It is an arithmetic number, because the mean of its divisors is an integer number (6831090).

Almost surely, 2^40568019 is an apocalyptic number.

40568019 is a deficient number, since it is larger than the sum of its proper divisors (14080701).

40568019 is a wasteful number, since it uses less digits than its factorization.

40568019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139509.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 40568019 is about 6369.3028660914. The cubic root of 40568019 is about 343.6064178753.

The spelling of 40568019 in words is "forty million, five hundred sixty-eight thousand, nineteen".