206424004 has 12 divisors (see below), whose sum is σ = 363667500. Its totient is φ = 102519008.

The previous prime is 206423989. The next prime is 206424007. The reversal of 206424004 is 400424602.

206424004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 71910400 + 134513604 = 8480^2 + 11598^2 .

It is a super-2 number, since 2×206424004² = 85221738854784032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206424007) 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, 172579 + ... + 173770.

It is an arithmetic number, because the mean of its divisors is an integer number (30305625).

Almost surely, 2^206424004 is an apocalyptic number.

It is an amenable number.

206424004 is a deficient number, since it is larger than the sum of its proper divisors (157243496).

206424004 is a wasteful number, since it uses less digits than its factorization.

206424004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346502 (or 346500 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 206424004 is about 14367.4633808477. The cubic root of 206424004 is about 590.9989817159.

Adding to 206424004 its reverse (400424602), we get a palindrome (606848606).

The spelling of 206424004 in words is "two hundred six million, four hundred twenty-four thousand, four".