213411750 has 128 divisors (see below), whose sum is σ = 562139136. Its totient is φ = 53856000.

The previous prime is 213411721. The next prime is 213411787. The reversal of 213411750 is 57114312.

It is a self number, because there is not a number n which added to its sum of digits gives 213411750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1557682 + ... + 1557818.

It is an arithmetic number, because the mean of its divisors is an integer number (4391712).

Almost surely, 2^213411750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213411750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281069568).

213411750 is an abundant number, since it is smaller than the sum of its proper divisors (348727386).

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

213411750 is a wasteful number, since it uses less digits than its factorization.

213411750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 213411750 is about 14608.6190312432. The cubic root of 213411750 is about 597.5938357437.

The spelling of 213411750 in words is "two hundred thirteen million, four hundred eleven thousand, seven hundred fifty".