19842202 has 8 divisors (see below), whose sum is σ = 30251412. Its totient is φ = 9758400.

The previous prime is 19842191. The next prime is 19842209. The reversal of 19842202 is 20224891.

It can be written as a sum of positive squares in 2 ways, for example, as 13024881 + 6817321 = 3609^2 + 2611^2 .

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

It is not an unprimeable number, because it can be changed into a prime (19842209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81199 + ... + 81442.

Almost surely, 2^19842202 is an apocalyptic number.

19842202 is a deficient number, since it is larger than the sum of its proper divisors (10409210).

19842202 is a wasteful number, since it uses less digits than its factorization.

19842202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162704.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19842202 is about 4454.4586652028. The cubic root of 19842202 is about 270.7259931134.

It can be divided in two parts, 1984 and 2202, that added together give a triangular number (4186 = T₉₁).

The spelling of 19842202 in words is "nineteen million, eight hundred forty-two thousand, two hundred two".