211425430 has 48 divisors (see below), whose sum is σ = 421412544. Its totient is φ = 76102400.

The previous prime is 211425353. The next prime is 211425439. The reversal of 211425430 is 34524112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211425439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88755 + ... + 91105.

It is an arithmetic number, because the mean of its divisors is an integer number (8779428).

Almost surely, 2^211425430 is an apocalyptic number.

211425430 is a deficient number, since it is larger than the sum of its proper divisors (209987114).

211425430 is a wasteful number, since it uses less digits than its factorization.

211425430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 211425430 is about 14540.4755768166. The cubic root of 211425430 is about 595.7340280597.

Adding to 211425430 its reverse (34524112), we get a palindrome (245949542).

The spelling of 211425430 in words is "two hundred eleven million, four hundred twenty-five thousand, four hundred thirty".