218057950 has 48 divisors (see below), whose sum is σ = 444792960. Its totient is φ = 78876000.

The previous prime is 218057947. The next prime is 218058011. The reversal of 218057950 is 59750812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115111 + ... + 116989.

It is an arithmetic number, because the mean of its divisors is an integer number (9266520).

Almost surely, 2^218057950 is an apocalyptic number.

218057950 is an abundant number, since it is smaller than the sum of its proper divisors (226735010).

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

218057950 is a wasteful number, since it uses less digits than its factorization.

218057950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 218057950 is about 14766.7853644590. The cubic root of 218057950 is about 601.8994894796.

The spelling of 218057950 in words is "two hundred eighteen million, fifty-seven thousand, nine hundred fifty".