1200724 has 48 divisors (see below), whose sum is σ = 2638720. Its totient is φ = 466560.

The previous prime is 1200701. The next prime is 1200739. The reversal of 1200724 is 4270021.

It is a junction number, because it is equal to n+sod(n) for n = 1200698 and 1200707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19654 + ... + 19714.

2^1200724 is an apocalyptic number.

1200724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319360).

1200724 is an abundant number, since it is smaller than the sum of its proper divisors (1437996).

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

1200724 is a wasteful number, since it uses less digits than its factorization.

1200724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1200724 is about 1095.7755244575. The cubic root of 1200724 is about 106.2872238663.

Adding to 1200724 its reverse (4270021), we get a palindrome (5470745).

The spelling of 1200724 in words is "one million, two hundred thousand, seven hundred twenty-four".