1405632 has 28 divisors (see below), whose sum is σ = 3719576. Its totient is φ = 468480.

The previous prime is 1405631. The next prime is 1405637. The reversal of 1405632 is 2365041.

It is a happy number.

1405632 is nontrivially palindromic in base 11.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1405599 and 1405608.

It is not an unprimeable number, because it can be changed into a prime (1405631) 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, 3469 + ... + 3852.

It is an arithmetic number, because the mean of its divisors is an integer number (132842).

2^1405632 is an apocalyptic number.

1405632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1405632 is an abundant number, since it is smaller than the sum of its proper divisors (2313944).

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

1405632 is an equidigital number, since it uses as much as digits as its factorization.

1405632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336 (or 7326 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1405632 is about 1185.5935222495. The cubic root of 1405632 is about 112.0187043591.

The spelling of 1405632 in words is "one million, four hundred five thousand, six hundred thirty-two".