213266436 has 24 divisors (see below), whose sum is σ = 497857920. Its totient is φ = 71055072.

The previous prime is 213266387. The next prime is 213266441. The reversal of 213266436 is 634662312.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 213266397 and 213266406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46770 + ... + 51126.

It is an arithmetic number, because the mean of its divisors is an integer number (20744080).

Almost surely, 2^213266436 is an apocalyptic number.

It is an amenable number.

213266436 is an abundant number, since it is smaller than the sum of its proper divisors (284591484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213266436 is a wasteful number, since it uses less digits than its factorization.

213266436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8443 (or 8441 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 213266436 is about 14603.6446135888. The cubic root of 213266436 is about 597.4581692557.

The spelling of 213266436 in words is "two hundred thirteen million, two hundred sixty-six thousand, four hundred thirty-six".