211420532 has 12 divisors (see below), whose sum is σ = 372125796. Its totient is φ = 105098880.

The previous prime is 211420513. The next prime is 211420567. The reversal of 211420532 is 235024112.

It can be written as a sum of positive squares in 2 ways, for example, as 179452816 + 31967716 = 13396^2 + 5654^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152069 + ... + 153452.

It is an arithmetic number, because the mean of its divisors is an integer number (31010483).

Almost surely, 2^211420532 is an apocalyptic number.

It is an amenable number.

211420532 is a deficient number, since it is larger than the sum of its proper divisors (160705264).

211420532 is a wasteful number, since it uses less digits than its factorization.

211420532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305698 (or 305696 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 211420532 is about 14540.3071494381. The cubic root of 211420532 is about 595.7294276547.

Adding to 211420532 its reverse (235024112), we get a palindrome (446444644).

The spelling of 211420532 in words is "two hundred eleven million, four hundred twenty thousand, five hundred thirty-two".