1408456 has 24 divisors (see below), whose sum is σ = 3072870. Its totient is φ = 603456.

The previous prime is 1408453. The next prime is 1408493. The reversal of 1408456 is 6548041.

It can be written as a sum of positive squares in only one way, i.e., 1285956 + 122500 = 1134^2 + 350^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1408453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1405 + ... + 2188.

2^1408456 is an apocalyptic number.

It is an amenable number.

1408456 is an abundant number, since it is smaller than the sum of its proper divisors (1664414).

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

1408456 is a wasteful number, since it uses less digits than its factorization.

1408456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1408456 is about 1186.7838893413. The cubic root of 1408456 is about 112.0936716355.

The spelling of 1408456 in words is "one million, four hundred eight thousand, four hundred fifty-six".