211264242 has 16 divisors (see below), whose sum is σ = 482889792. Its totient is φ = 60361200.

The previous prime is 211264241. The next prime is 211264243. The reversal of 211264242 is 242462112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211264241) and next prime (211264243).

It is not an unprimeable number, because it can be changed into a prime (211264241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2515009 + ... + 2515092.

It is an arithmetic number, because the mean of its divisors is an integer number (30180612).

Almost surely, 2^211264242 is an apocalyptic number.

211264242 is an abundant number, since it is smaller than the sum of its proper divisors (271625550).

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

211264242 is a wasteful number, since it uses less digits than its factorization.

211264242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030113.

The product of its digits is 1536, while the sum is 24.

The square root of 211264242 is about 14534.9317851856. The cubic root of 211264242 is about 595.5825962765.

The spelling of 211264242 in words is "two hundred eleven million, two hundred sixty-four thousand, two hundred forty-two".