213769500 has 96 divisors (see below), whose sum is σ = 711459840. Its totient is φ = 48859200.

The previous prime is 213769499. The next prime is 213769537. The reversal of 213769500 is 5967312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (7411040).

Almost surely, 2^213769500 is an apocalyptic number.

213769500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213769500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355729920).

213769500 is an abundant number, since it is smaller than the sum of its proper divisors (497690340).

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

213769500 is a wasteful number, since it uses less digits than its factorization.

213769500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20388 (or 20376 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 213769500 is about 14620.8583879333. The cubic root of 213769500 is about 597.9275722022.

It can be divided in two parts, 21376 and 9500, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 213769500 in words is "two hundred thirteen million, seven hundred sixty-nine thousand, five hundred".