213810736 has 40 divisors (see below), whose sum is σ = 439034400. Its totient is φ = 100692480.

The previous prime is 213810721. The next prime is 213810761. The reversal of 213810736 is 637018312.

It is a junction number, because it is equal to n+sod(n) for n = 213810698 and 213810707.

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, 13405 + ... + 24643.

It is an arithmetic number, because the mean of its divisors is an integer number (10975860).

Almost surely, 2^213810736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213810736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219517200).

213810736 is an abundant number, since it is smaller than the sum of its proper divisors (225223664).

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

213810736 is a wasteful number, since it uses less digits than its factorization.

213810736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317 (or 11311 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 213810736 is about 14622.2684970561. The cubic root of 213810736 is about 597.9660163460.

The spelling of 213810736 in words is "two hundred thirteen million, eight hundred ten thousand, seven hundred thirty-six".