19942210 has 16 divisors (see below), whose sum is σ = 37785600. Its totient is φ = 7556976.

The previous prime is 19942199. The next prime is 19942217. The reversal of 19942210 is 1224991.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19942217) 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, 52290 + ... + 52669.

It is an arithmetic number, because the mean of its divisors is an integer number (2361600).

Almost surely, 2^19942210 is an apocalyptic number.

19942210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19942210 is a deficient number, since it is larger than the sum of its proper divisors (17843390).

19942210 is a wasteful number, since it uses less digits than its factorization.

19942210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104985.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 19942210 is about 4465.6701624728. The cubic root of 19942210 is about 271.1800657839.

The spelling of 19942210 in words is "nineteen million, nine hundred forty-two thousand, two hundred ten".