1230912 has 42 divisors (see below), whose sum is σ = 3529838. Its totient is φ = 410112.

The previous prime is 1230907. The next prime is 1230913. The reversal of 1230912 is 2190321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 746496 + 484416 = 864^2 + 696^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1230913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 493 + ... + 1644.

2^1230912 is an apocalyptic number.

1230912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230912 is an abundant number, since it is smaller than the sum of its proper divisors (2298926).

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

1230912 is a wasteful number, since it uses less digits than its factorization.

1230912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1230912 is about 1109.4647358073. The cubic root of 1230912 is about 107.1706015769.

It can be divided in two parts, 12309 and 12, that added together give a palindrome (12321).

The spelling of 1230912 in words is "one million, two hundred thirty thousand, nine hundred twelve".