211053642 has 16 divisors (see below), whose sum is σ = 435724032. Its totient is φ = 68081760.

The previous prime is 211053613. The next prime is 211053659. The reversal of 211053642 is 246350112.

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, 567163 + ... + 567534.

It is an arithmetic number, because the mean of its divisors is an integer number (27232752).

Almost surely, 2^211053642 is an apocalyptic number.

211053642 is an abundant number, since it is smaller than the sum of its proper divisors (224670390).

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

211053642 is a wasteful number, since it uses less digits than its factorization.

211053642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134733.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 211053642 is about 14527.6853627823. The cubic root of 211053642 is about 595.3846271437.

The spelling of 211053642 in words is "two hundred eleven million, fifty-three thousand, six hundred forty-two".