1209472 has 32 divisors (see below), whose sum is σ = 2631600. Its totient is φ = 549120.

The previous prime is 1209469. The next prime is 1209487. The reversal of 1209472 is 2749021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a plaindrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979 + ... + 1837.

2^1209472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1209472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315800).

1209472 is an abundant number, since it is smaller than the sum of its proper divisors (1422128).

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

1209472 is an equidigital number, since it uses as much as digits as its factorization.

1209472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1209472 is about 1099.7599738125. The cubic root of 1209472 is about 106.5447217527.

It can be divided in two parts, 1209 and 472, that added together give a square (1681 = 41²).

The spelling of 1209472 in words is "one million, two hundred nine thousand, four hundred seventy-two".