1218460 has 12 divisors (see below), whose sum is σ = 2558808. Its totient is φ = 487376.

The previous prime is 1218457. The next prime is 1218463. The reversal of 1218460 is 648121.

It is an interprime number because it is at equal distance from previous prime (1218457) and next prime (1218463).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218463) 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 3 ways as a sum of consecutive naturals, for example, 30442 + ... + 30481.

It is an arithmetic number, because the mean of its divisors is an integer number (213234).

2^1218460 is an apocalyptic number.

1218460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218460 is an abundant number, since it is smaller than the sum of its proper divisors (1340348).

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

1218460 is a wasteful number, since it uses less digits than its factorization.

1218460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60932 (or 60930 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1218460 is about 1103.8387563408. The cubic root of 1218460 is about 106.8079940899.

The spelling of 1218460 in words is "one million, two hundred eighteen thousand, four hundred sixty".