1212940 has 12 divisors (see below), whose sum is σ = 2547216. Its totient is φ = 485168.

The previous prime is 1212931. The next prime is 1212943. The reversal of 1212940 is 492121.

It is not an unprimeable number, because it can be changed into a prime (1212943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30304 + ... + 30343.

It is an arithmetic number, because the mean of its divisors is an integer number (212268).

2^1212940 is an apocalyptic number.

1212940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212940 is an abundant number, since it is smaller than the sum of its proper divisors (1334276).

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

1212940 is a wasteful number, since it uses less digits than its factorization.

1212940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60656 (or 60654 counting only the distinct ones).

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

The square root of 1212940 is about 1101.3355528630. The cubic root of 1212940 is about 106.6464588455.

The spelling of 1212940 in words is "one million, two hundred twelve thousand, nine hundred forty".