40022019 has 20 divisors (see below), whose sum is σ = 60516456. Its totient is φ = 26355456.

The previous prime is 40022011. The next prime is 40022041. The reversal of 40022019 is 91022004.

It is not a de Polignac number, because 40022019 - 2³ = 40022011 is a prime.

It is a super-2 number, since 2×40022019² = 3203524009672722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40021992 and 40022010.

It is not an unprimeable number, because it can be changed into a prime (40022011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3747 + ... + 9699.

Almost surely, 2^40022019 is an apocalyptic number.

40022019 is a deficient number, since it is larger than the sum of its proper divisors (20494437).

40022019 is an equidigital number, since it uses as much as digits as its factorization.

40022019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 40022019 is about 6326.2958356372. The cubic root of 40022019 is about 342.0579310914.

The spelling of 40022019 in words is "forty million, twenty-two thousand, nineteen".