211453828 has 12 divisors (see below), whose sum is σ = 373503312. Its totient is φ = 104738600.

The previous prime is 211453777. The next prime is 211453829. The reversal of 211453828 is 828354112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211453793 and 211453802.

It is not an unprimeable number, because it can be changed into a prime (211453829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246598 + ... + 247453.

It is an arithmetic number, because the mean of its divisors is an integer number (31125276).

Almost surely, 2^211453828 is an apocalyptic number.

It is an amenable number.

211453828 is a deficient number, since it is larger than the sum of its proper divisors (162049484).

211453828 is a wasteful number, since it uses less digits than its factorization.

211453828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494162 (or 494160 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 211453828 is about 14541.4520595434. The cubic root of 211453828 is about 595.7606992404.

The spelling of 211453828 in words is "two hundred eleven million, four hundred fifty-three thousand, eight hundred twenty-eight".