211142432 has 12 divisors (see below), whose sum is σ = 415686726. Its totient is φ = 105571200.

The previous prime is 211142429. The next prime is 211142467. The reversal of 211142432 is 234241112.

It can be written as a sum of positive squares in only one way, i.e., 200618896 + 10523536 = 14164^2 + 3244^2 .

It is a super-2 number, since 2×211142432² = 89162253181749248, 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, 3299069 + ... + 3299132.

Almost surely, 2^211142432 is an apocalyptic number.

It is an amenable number.

211142432 is a deficient number, since it is larger than the sum of its proper divisors (204544294).

211142432 is an equidigital number, since it uses as much as digits as its factorization.

211142432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598211 (or 6598203 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 211142432 is about 14530.7409308679. The cubic root of 211142432 is about 595.4681079577.

Adding to 211142432 its reverse (234241112), we get a palindrome (445383544).

The spelling of 211142432 in words is "two hundred eleven million, one hundred forty-two thousand, four hundred thirty-two".