211474442 has 4 divisors (see below), whose sum is σ = 317211666. Its totient is φ = 105737220.

The previous prime is 211474411. The next prime is 211474451. The reversal of 211474442 is 244474112.

211474442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 206813161 + 4661281 = 14381^2 + 2159^2 .

It is a super-2 number, since 2×211474442² = 89442879238422728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52868609 + ... + 52868612.

Almost surely, 2^211474442 is an apocalyptic number.

211474442 is a deficient number, since it is larger than the sum of its proper divisors (105737224).

211474442 is a wasteful number, since it uses less digits than its factorization.

211474442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105737223.

The product of its digits is 7168, while the sum is 29.

The square root of 211474442 is about 14542.1608435610. The cubic root of 211474442 is about 595.7800582531.

The spelling of 211474442 in words is "two hundred eleven million, four hundred seventy-four thousand, four hundred forty-two".