1208990 has 8 divisors (see below), whose sum is σ = 2176200. Its totient is φ = 483592.

The previous prime is 1208957. The next prime is 1209007. The reversal of 1208990 is 998021.

1208990 = T₁₇₀ + T₁₇₁ + ... + T₂₂₉.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 60440 + ... + 60459.

It is an arithmetic number, because the mean of its divisors is an integer number (272025).

2^1208990 is an apocalyptic number.

1208990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1208990 is a deficient number, since it is larger than the sum of its proper divisors (967210).

1208990 is a wasteful number, since it uses less digits than its factorization.

1208990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120906.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1208990 is about 1099.5408132489. The cubic root of 1208990 is about 106.5305664355.

The spelling of 1208990 in words is "one million, two hundred eight thousand, nine hundred ninety".