211428339 has 16 divisors (see below), whose sum is σ = 291456000. Its totient is φ = 136190880.

The previous prime is 211428319. The next prime is 211428353. The reversal of 211428339 is 933824112.

It is not a de Polignac number, because 211428339 - 2¹¹ = 211426291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211428319) 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, 75537 + ... + 78285.

It is an arithmetic number, because the mean of its divisors is an integer number (18216000).

Almost surely, 2^211428339 is an apocalyptic number.

211428339 is a deficient number, since it is larger than the sum of its proper divisors (80027661).

211428339 is a wasteful number, since it uses less digits than its factorization.

211428339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610.

The product of its digits is 10368, while the sum is 33.

The square root of 211428339 is about 14540.5756075886. The cubic root of 211428339 is about 595.7367602797.

The spelling of 211428339 in words is "two hundred eleven million, four hundred twenty-eight thousand, three hundred thirty-nine".