22140019 has 8 divisors (see below), whose sum is σ = 24269760. Its totient is φ = 20029800.

The previous prime is 22139993. The next prime is 22140029. The reversal of 22140019 is 91004122.

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

It is a cyclic number.

It is not a de Polignac number, because 22140019 - 2⁷ = 22139891 is a prime.

It is a super-2 number, since 2×22140019² = 980360882640722, 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 = 22139978 and 22140005.

It is not an unprimeable number, because it can be changed into a prime (22140029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (3033720).

Almost surely, 2^22140019 is an apocalyptic number.

22140019 is a deficient number, since it is larger than the sum of its proper divisors (2129741).

22140019 is a wasteful number, since it uses less digits than its factorization.

22140019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 22140019 is about 4705.3181613999. The cubic root of 22140019 is about 280.7971290186.

It can be divided in two parts, 22 and 140019, that added together give a palindrome (140041).

The spelling of 22140019 in words is "twenty-two million, one hundred forty thousand, nineteen".