1218474 has 24 divisors (see below), whose sum is σ = 2664480. Its totient is φ = 402408.

The previous prime is 1218473. The next prime is 1218487. The reversal of 1218474 is 4748121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1218473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2259 + ... + 2745.

It is an arithmetic number, because the mean of its divisors is an integer number (111020).

2^1218474 is an apocalyptic number.

1218474 is an abundant number, since it is smaller than the sum of its proper divisors (1446006).

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

1218474 is a wasteful number, since it uses less digits than its factorization.

1218474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 631 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1218474 is about 1103.8450978285. The cubic root of 1218474 is about 106.8084031599.

The spelling of 1218474 in words is "one million, two hundred eighteen thousand, four hundred seventy-four".