218871950 has 48 divisors (see below), whose sum is σ = 453613824. Its totient is φ = 77887200.

The previous prime is 218871943. The next prime is 218871967. The reversal of 218871950 is 59178812.

218871950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 218871898 and 218871907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21617 + ... + 30083.

It is an arithmetic number, because the mean of its divisors is an integer number (9450288).

Almost surely, 2^218871950 is an apocalyptic number.

218871950 is an abundant number, since it is smaller than the sum of its proper divisors (234741874).

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

218871950 is a wasteful number, since it uses less digits than its factorization.

218871950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537 (or 8532 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 218871950 is about 14794.3215457824. The cubic root of 218871950 is about 602.6475135668.

The spelling of 218871950 in words is "two hundred eighteen million, eight hundred seventy-one thousand, nine hundred fifty".