206019842 has 16 divisors (see below), whose sum is σ = 354974400. Its totient is φ = 87844848.

The previous prime is 206019791. The next prime is 206019881. The reversal of 206019842 is 248910602.

It is a junction number, because it is equal to n+sod(n) for n = 206019799 and 206019808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34592 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (22185900).

Almost surely, 2^206019842 is an apocalyptic number.

206019842 is a deficient number, since it is larger than the sum of its proper divisors (148954558).

206019842 is a wasteful number, since it uses less digits than its factorization.

206019842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74905.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 206019842 is about 14353.3913065867. The cubic root of 206019842 is about 590.6130198367.

The spelling of 206019842 in words is "two hundred six million, nineteen thousand, eight hundred forty-two".