40140219 has 8 divisors (see below), whose sum is σ = 61166080. Its totient is φ = 22937256.

The previous prime is 40140203. The next prime is 40140229. The reversal of 40140219 is 91204104.

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

It is not a de Polignac number, because 40140219 - 2⁴ = 40140203 is a prime.

It is a super-2 number, since 2×40140219² = 3222474362735922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1911439 = 40140219 / (4 + 0 + 1 + 4 + 0 + 2 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40140195 and 40140204.

It is not an unprimeable number, because it can be changed into a prime (40140229) 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, 955699 + ... + 955740.

It is an arithmetic number, because the mean of its divisors is an integer number (7645760).

Almost surely, 2^40140219 is an apocalyptic number.

40140219 is a deficient number, since it is larger than the sum of its proper divisors (21025861).

40140219 is a wasteful number, since it uses less digits than its factorization.

40140219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911449.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 40140219 is about 6335.6309078102. The cubic root of 40140219 is about 342.3943418205.

The spelling of 40140219 in words is "forty million, one hundred forty thousand, two hundred nineteen".