213732750 has 128 divisors (see below), whose sum is σ = 665293824. Its totient is φ = 44400000.

The previous prime is 213732737. The next prime is 213732773. The reversal of 213732750 is 57237312.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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, 55900 + ... + 59600.

It is an arithmetic number, because the mean of its divisors is an integer number (5197608).

Almost surely, 2^213732750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213732750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332646912).

213732750 is an abundant number, since it is smaller than the sum of its proper divisors (451561074).

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

213732750 is a wasteful number, since it uses less digits than its factorization.

213732750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 213732750 is about 14619.6015677583. The cubic root of 213732750 is about 597.8933061702.

The spelling of 213732750 in words is "two hundred thirteen million, seven hundred thirty-two thousand, seven hundred fifty".