40223819 has 8 divisors (see below), whose sum is σ = 42968880. Its totient is φ = 37520896.

The previous prime is 40223789. The next prime is 40223831. The reversal of 40223819 is 91832204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40223819 is a prime.

It is a super-2 number, since 2×40223819² = 3235911229889522, 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 = 40223791 and 40223800.

It is not an unprimeable number, because it can be changed into a prime (40228819) 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, 8549 + ... + 12390.

It is an arithmetic number, because the mean of its divisors is an integer number (5371110).

Almost surely, 2^40223819 is an apocalyptic number.

40223819 is a deficient number, since it is larger than the sum of its proper divisors (2745061).

40223819 is a wasteful number, since it uses less digits than its factorization.

40223819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40223819 is about 6342.2250827292. The cubic root of 40223819 is about 342.6318784592.

The spelling of 40223819 in words is "forty million, two hundred twenty-three thousand, eight hundred nineteen".