1408281 has 8 divisors (see below), whose sum is σ = 2145984. Its totient is φ = 804720.

The previous prime is 1408279. The next prime is 1408289. The reversal of 1408281 is 1828041.

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

It is not a de Polignac number, because 1408281 - 2¹ = 1408279 is a prime.

It is a super-2 number, since 2×1408281² = 3966510749922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1408289) 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, 33510 + ... + 33551.

It is an arithmetic number, because the mean of its divisors is an integer number (268248).

2^1408281 is an apocalyptic number.

It is an amenable number.

1408281 is a deficient number, since it is larger than the sum of its proper divisors (737703).

1408281 is an equidigital number, since it uses as much as digits as its factorization.

1408281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67071.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1408281 is about 1186.7101583790. The cubic root of 1408281 is about 112.0890289145.

The spelling of 1408281 in words is "one million, four hundred eight thousand, two hundred eighty-one".