218469470 has 32 divisors (see below), whose sum is σ = 407743200. Its totient is φ = 84180096.

The previous prime is 218469469. The next prime is 218469473. The reversal of 218469470 is 74964812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218469473) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 248672 + ... + 249548.

It is an arithmetic number, because the mean of its divisors is an integer number (12741975).

Almost surely, 2^218469470 is an apocalyptic number.

218469470 is a deficient number, since it is larger than the sum of its proper divisors (189273730).

218469470 is a wasteful number, since it uses less digits than its factorization.

218469470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 218469470 is about 14780.7127703640. The cubic root of 218469470 is about 602.2778874007.

The spelling of 218469470 in words is "two hundred eighteen million, four hundred sixty-nine thousand, four hundred seventy".