218200742 has 8 divisors (see below), whose sum is σ = 327782376. Its totient is φ = 108939952.

The previous prime is 218200711. The next prime is 218200753. The reversal of 218200742 is 247002812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×218200742² = 95223127618701128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78503 + ... + 81234.

It is an arithmetic number, because the mean of its divisors is an integer number (40972797).

Almost surely, 2^218200742 is an apocalyptic number.

218200742 is a deficient number, since it is larger than the sum of its proper divisors (109581634).

218200742 is a wasteful number, since it uses less digits than its factorization.

218200742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160422.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 218200742 is about 14771.6194779042. The cubic root of 218200742 is about 602.0308424502.

The spelling of 218200742 in words is "two hundred eighteen million, two hundred thousand, seven hundred forty-two".