218148046 has 16 divisors (see below), whose sum is σ = 348685776. Its totient is φ = 102001536.

The previous prime is 218148037. The next prime is 218148059. The reversal of 218148046 is 640841812.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15096 + ... + 25771.

It is an arithmetic number, because the mean of its divisors is an integer number (21792861).

Almost surely, 2^218148046 is an apocalyptic number.

218148046 is a deficient number, since it is larger than the sum of its proper divisors (130537730).

218148046 is a wasteful number, since it uses less digits than its factorization.

218148046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41043.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 218148046 is about 14769.8356795193. The cubic root of 218148046 is about 601.9823745865.

Adding to 218148046 its reverse (640841812), we get a palindrome (858989858).

The spelling of 218148046 in words is "two hundred eighteen million, one hundred forty-eight thousand, forty-six".