1242910 has 8 divisors (see below), whose sum is σ = 2237256. Its totient is φ = 497160.

The previous prime is 1242893. The next prime is 1242929. The reversal of 1242910 is 192421.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62136 + ... + 62155.

It is an arithmetic number, because the mean of its divisors is an integer number (279657).

2^1242910 is an apocalyptic number.

1242910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242910 is a deficient number, since it is larger than the sum of its proper divisors (994346).

1242910 is a wasteful number, since it uses less digits than its factorization.

1242910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124298.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1242910 is about 1114.8587354459. The cubic root of 1242910 is about 107.5176823266.

The spelling of 1242910 in words is "one million, two hundred forty-two thousand, nine hundred ten".