1213968 has 40 divisors (see below), whose sum is σ = 3585088. Its totient is φ = 346752.

The previous prime is 1213951. The next prime is 1213981. The reversal of 1213968 is 8693121.

It is a super-5 number, since 5×1213968⁵ (a number of 32 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471 + ... + 2142.

2^1213968 is an apocalyptic number.

It is an amenable number.

1213968 is an abundant number, since it is smaller than the sum of its proper divisors (2371120).

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

1213968 is a wasteful number, since it uses less digits than its factorization.

1213968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631 (or 3625 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1213968 is about 1101.8021600995. The cubic root of 1213968 is about 106.6765789400.

The spelling of 1213968 in words is "one million, two hundred thirteen thousand, nine hundred sixty-eight".