428015206 has 32 divisors (see below), whose sum is σ = 675164160. Its totient is φ = 203321664.

The previous prime is 428015201. The next prime is 428015219. The reversal of 428015206 is 602510824.

It is a super-3 number, since 3×428015206³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428015201) 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, 495531 + ... + 496393.

It is an arithmetic number, because the mean of its divisors is an integer number (21098880).

Almost surely, 2^428015206 is an apocalyptic number.

428015206 is a deficient number, since it is larger than the sum of its proper divisors (247148954).

428015206 is a wasteful number, since it uses less digits than its factorization.

428015206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 428015206 is about 20688.5283671894. The cubic root of 428015206 is about 753.6211290211.

The spelling of 428015206 in words is "four hundred twenty-eight million, fifteen thousand, two hundred six".