1218950 has 12 divisors (see below), whose sum is σ = 2267340. Its totient is φ = 487560.

The previous prime is 1218949. The next prime is 1218953. The reversal of 1218950 is 598121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12140 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (188945).

2^1218950 is an apocalyptic number.

1218950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1218950 is a deficient number, since it is larger than the sum of its proper divisors (1048390).

1218950 is a wasteful number, since it uses less digits than its factorization.

1218950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24391 (or 24386 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1218950 is about 1104.0606867378. The cubic root of 1218950 is about 106.8223096749.

The spelling of 1218950 in words is "one million, two hundred eighteen thousand, nine hundred fifty".