1218437470 has 32 divisors (see below), whose sum is σ = 2220903360. Its totient is φ = 481244160.

The previous prime is 1218437459. The next prime is 1218437471. The reversal of 1218437470 is 747348121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218437471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399150 + ... + 402190.

It is an arithmetic number, because the mean of its divisors is an integer number (69403230).

Almost surely, 2^1218437470 is an apocalyptic number.

1218437470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1218437470 is a deficient number, since it is larger than the sum of its proper divisors (1002465890).

1218437470 is a wasteful number, since it uses less digits than its factorization.

1218437470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 1218437470 is about 34906.1236747938. The cubic root of 1218437470 is about 1068.0733577287.

The spelling of 1218437470 in words is "one billion, two hundred eighteen million, four hundred thirty-seven thousand, four hundred seventy".