211438029042 has 48 divisors (see below), whose sum is σ = 497782821120. Its totient is φ = 64616032800.

The previous prime is 211438029041. The next prime is 211438029079. The reversal of 211438029042 is 240920834112.

211438029042 is a `hidden beast` number, since 211 + 4 + 380 + 29 + 0 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 211438028988 and 211438029006.

It is not an unprimeable number, because it can be changed into a prime (211438029041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9961009 + ... + 9982212.

It is an arithmetic number, because the mean of its divisors is an integer number (10370475440).

Almost surely, 2^211438029042 is an apocalyptic number.

211438029042 is an abundant number, since it is smaller than the sum of its proper divisors (286344792078).

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

211438029042 is a wasteful number, since it uses less digits than its factorization.

211438029042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19943279 (or 19943276 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 211438029042 in words is "two hundred eleven billion, four hundred thirty-eight million, twenty-nine thousand, forty-two".