1228432 has 10 divisors (see below), whose sum is σ = 2380118. Its totient is φ = 614208.

The previous prime is 1228429. The next prime is 1228441. The reversal of 1228432 is 2348221.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 389376 = 916^2 + 624^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38373 + ... + 38404.

2^1228432 is an apocalyptic number.

It is an amenable number.

1228432 is a deficient number, since it is larger than the sum of its proper divisors (1151686).

1228432 is an equidigital number, since it uses as much as digits as its factorization.

1228432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76785 (or 76779 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1228432 is about 1108.3465162123. The cubic root of 1228432 is about 107.0985786138.

Subtracting from 1228432 its product of digits (768), we obtain a square (1227664 = 1108²).

The spelling of 1228432 in words is "one million, two hundred twenty-eight thousand, four hundred thirty-two".