1209632 has 24 divisors (see below), whose sum is σ = 2411136. Its totient is φ = 597312.

The previous prime is 1209631. The next prime is 1209647. The reversal of 1209632 is 2369021.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1209598 and 1209607.

It is not an unprimeable number, because it can be changed into a prime (1209631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (100464).

2^1209632 is an apocalyptic number.

It is an amenable number.

1209632 is a deficient number, since it is larger than the sum of its proper divisors (1201504).

1209632 is a wasteful number, since it uses less digits than its factorization.

1209632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1209632 is about 1099.8327145525. The cubic root of 1209632 is about 106.5494197818.

The spelling of 1209632 in words is "one million, two hundred nine thousand, six hundred thirty-two".