206264399 has 16 divisors (see below), whose sum is σ = 242645760. Its totient is φ = 173304000.

The previous prime is 206264369. The next prime is 206264411. The reversal of 206264399 is 993462602.

206264399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 206264399 - 2⁸ = 206264143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206264329) 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, 3467 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (15165360).

Almost surely, 2^206264399 is an apocalyptic number.

206264399 is a deficient number, since it is larger than the sum of its proper divisors (36381361).

206264399 is a wasteful number, since it uses less digits than its factorization.

206264399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24142.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 206264399 is about 14361.9079164295. The cubic root of 206264399 is about 590.8466242513.

The spelling of 206264399 in words is "two hundred six million, two hundred sixty-four thousand, three hundred ninety-nine".