1230724 has 24 divisors (see below), whose sum is σ = 2384928. Its totient is φ = 551040.

The previous prime is 1230689. The next prime is 1230727. The reversal of 1230724 is 4270321.

1230724 = 72² + 73² + ... + 159².

It is not an unprimeable number, because it can be changed into a prime (1230727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 3820.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2^1230724 is an apocalyptic number.

It is an amenable number.

1230724 is a deficient number, since it is larger than the sum of its proper divisors (1154204).

1230724 is a wasteful number, since it uses less digits than its factorization.

1230724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1230724 is about 1109.3800070310. The cubic root of 1230724 is about 107.1651451622.

The spelling of 1230724 in words is "one million, two hundred thirty thousand, seven hundred twenty-four".