199420 has 36 divisors (see below), whose sum is σ = 461160. Its totient is φ = 72384.

The previous prime is 199417. The next prime is 199429. The reversal of 199420 is 24991.

199420 = T₈₁ + T₈₂ + ... + T₁₁₉.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3351 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (12810).

2¹⁹⁹⁴²⁰ is an apocalyptic number.

199420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230580).

199420 is an abundant number, since it is smaller than the sum of its proper divisors (261740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199420 is a wasteful number, since it uses less digits than its factorization.

199420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 199420 is about 446.5646649703. The cubic root of 199420 is about 58.4237690198.

The spelling of 199420 in words is "one hundred ninety-nine thousand, four hundred twenty".