40200019 has 16 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 36301824.

The previous prime is 40199983. The next prime is 40200071. The reversal of 40200019 is 91000204.

It is a cyclic number.

It is not a de Polignac number, because 40200019 - 2⁷ = 40199891 is a prime.

It is a super-2 number, since 2×40200019² = 3232083055200722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40199975 and 40200011.

It is not an unprimeable number, because it can be changed into a prime (40209019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49287 + ... + 50095.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^40200019 is an apocalyptic number.

40200019 is a deficient number, since it is larger than the sum of its proper divisors (4123181).

40200019 is a wasteful number, since it uses less digits than its factorization.

40200019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 40200019 is about 6340.3484919995. The cubic root of 40200019 is about 342.5642879305.

The spelling of 40200019 in words is "forty million, two hundred thousand, nineteen".