1408745 has 8 divisors (see below), whose sum is σ = 1820616. Its totient is φ = 1040256.

The previous prime is 1408741. The next prime is 1408763. The reversal of 1408745 is 5478041.

It can be written as a sum of positive squares in 4 ways, for example, as 283024 + 1125721 = 532^2 + 1061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1408745 - 2² = 1408741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1408741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10772 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (227577).

2^1408745 is an apocalyptic number.

It is an amenable number.

1408745 is a deficient number, since it is larger than the sum of its proper divisors (411871).

1408745 is a wasteful number, since it uses less digits than its factorization.

1408745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21691.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1408745 is about 1186.9056407314. The cubic root of 1408745 is about 112.1013379159.

The spelling of 1408745 in words is "one million, four hundred eight thousand, seven hundred forty-five".