1408649 has 8 divisors (see below), whose sum is σ = 1557120. Its totient is φ = 1263600.

The previous prime is 1408633. The next prime is 1408651. The reversal of 1408649 is 9468041.

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 1408649 - 2⁴ = 1408633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1408619) 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, 59 + ... + 1679.

It is an arithmetic number, because the mean of its divisors is an integer number (194640).

2^1408649 is an apocalyptic number.

It is an amenable number.

1408649 is a deficient number, since it is larger than the sum of its proper divisors (148471).

1408649 is a wasteful number, since it uses less digits than its factorization.

1408649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1408649 is about 1186.8651987484. The cubic root of 1408649 is about 112.0987914477.

Adding to 1408649 its sum of digits (32), we get a triangular number (1408681 = T₁₆₇₈).

The spelling of 1408649 in words is "one million, four hundred eight thousand, six hundred forty-nine".