206406402 has 16 divisors (see below), whose sum is σ = 414618240. Its totient is φ = 68501232.

The previous prime is 206406391. The next prime is 206406437. The reversal of 206406402 is 204604602.

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, 73738 + ... + 76485.

It is an arithmetic number, because the mean of its divisors is an integer number (25913640).

Almost surely, 2^206406402 is an apocalyptic number.

206406402 is an abundant number, since it is smaller than the sum of its proper divisors (208211838).

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

206406402 is a wasteful number, since it uses less digits than its factorization.

206406402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150457.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 206406402 is about 14366.8508031510. The cubic root of 206406402 is about 590.9821828625.

The spelling of 206406402 in words is "two hundred six million, four hundred six thousand, four hundred two".