211434004 has 24 divisors (see below), whose sum is σ = 375233768. Its totient is φ = 104232960.

The previous prime is 211433987. The next prime is 211434011. The reversal of 211434004 is 400434112.

It can be written as a sum of positive squares in 4 ways, for example, as 26419600 + 185014404 = 5140^2 + 13602^2 .

It is a congruent number.

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, 120574 + ... + 122314.

Almost surely, 2^211434004 is an apocalyptic number.

It is an amenable number.

211434004 is a deficient number, since it is larger than the sum of its proper divisors (163799764).

211434004 is a wasteful number, since it uses less digits than its factorization.

211434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 211434004 is about 14540.7704059998. The cubic root of 211434004 is about 595.7420809455.

Adding to 211434004 its reverse (400434112), we get a palindrome (611868116).

The spelling of 211434004 in words is "two hundred eleven million, four hundred thirty-four thousand, four".