1210940 has 24 divisors (see below), whose sum is σ = 2564352. Its totient is φ = 480320.

The previous prime is 1210939. The next prime is 1210949. The reversal of 1210940 is 490121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210949) 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 7 ways as a sum of consecutive naturals, for example, 3662 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (106848).

2^1210940 is an apocalyptic number.

1210940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210940 is an abundant number, since it is smaller than the sum of its proper divisors (1353412).

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

1210940 is a wasteful number, since it uses less digits than its factorization.

1210940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1210940 is about 1100.4271897768. The cubic root of 1210940 is about 106.5878106417.

The spelling of 1210940 in words is "one million, two hundred ten thousand, nine hundred forty".