99940219 has 8 divisors (see below), whose sum is σ = 102866000. Its totient is φ = 97026336.

The previous prime is 99940201. The next prime is 99940223. The reversal of 99940219 is 91204999.

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 99940219 - 2⁷ = 99940091 is a prime.

It is a super-2 number, since 2×99940219² = 19976094747535922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99940259) 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, 15757 + ... + 21169.

It is an arithmetic number, because the mean of its divisors is an integer number (12858250).

Almost surely, 2^99940219 is an apocalyptic number.

99940219 is a deficient number, since it is larger than the sum of its proper divisors (2925781).

99940219 is a wasteful number, since it uses less digits than its factorization.

99940219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 99940219 is about 9997.0105031454. The cubic root of 99940219 is about 464.0663719834.

The spelling of 99940219 in words is "ninety-nine million, nine hundred forty thousand, two hundred nineteen".