199864342 has 32 divisors (see below), whose sum is σ = 333932544. Its totient is φ = 89232000.

The previous prime is 199864339. The next prime is 199864349. The reversal of 199864342 is 243468991.

199864342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 199864292 and 199864301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199864349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101467 + ... + 103417.

It is an arithmetic number, because the mean of its divisors is an integer number (10435392).

Almost surely, 2^199864342 is an apocalyptic number.

199864342 is a deficient number, since it is larger than the sum of its proper divisors (134068202).

199864342 is a wasteful number, since it uses less digits than its factorization.

199864342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its digits is 373248, while the sum is 46.

The square root of 199864342 is about 14137.3385755594. The cubic root of 199864342 is about 584.6712956035.

The spelling of 199864342 in words is "one hundred ninety-nine million, eight hundred sixty-four thousand, three hundred forty-two".