99940210 has 8 divisors (see below), whose sum is σ = 179892396. Its totient is φ = 39976080.

The previous prime is 99940201. The next prime is 99940223. The reversal of 99940210 is 1204999.

It can be written as a sum of positive squares in 2 ways, for example, as 97752769 + 2187441 = 9887^2 + 1479^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4997001 + ... + 4997020.

Almost surely, 2^99940210 is an apocalyptic number.

99940210 is a deficient number, since it is larger than the sum of its proper divisors (79952186).

99940210 is a wasteful number, since it uses less digits than its factorization.

99940210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9994028.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 99940210 is about 9997.0100530109. The cubic root of 99940210 is about 464.0663580531.

It can be divided in two parts, 999 and 40210, that added together give a square (41209 = 203²).

The spelling of 99940210 in words is "ninety-nine million, nine hundred forty thousand, two hundred ten".