1408928 has 12 divisors (see below), whose sum is σ = 2773890. Its totient is φ = 704448.

The previous prime is 1408889. The next prime is 1408961. The reversal of 1408928 is 8298041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 35344 = 1172^2 + 188^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 44029 = 1408928 / (1 + 4 + 0 + 8 + 9 + 2 + 8).

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1408894 and 1408903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21983 + ... + 22046.

2^1408928 is an apocalyptic number.

It is an amenable number.

1408928 is a deficient number, since it is larger than the sum of its proper divisors (1364962).

1408928 is an equidigital number, since it uses as much as digits as its factorization.

1408928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44039 (or 44031 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1408928 is about 1186.9827294447. The cubic root of 1408928 is about 112.1061918004.

The spelling of 1408928 in words is "one million, four hundred eight thousand, nine hundred twenty-eight".