1408280 has 64 divisors (see below), whose sum is σ = 3564000. Its totient is φ = 497664.

The previous prime is 1408279. The next prime is 1408289. The reversal of 1408280 is 828041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12866 + ... + 12974.

2^1408280 is an apocalyptic number.

1408280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1408280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782000).

1408280 is an abundant number, since it is smaller than the sum of its proper divisors (2155720).

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

1408280 is a wasteful number, since it uses less digits than its factorization.

1408280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1408280 is about 1186.7097370461. The cubic root of 1408280 is about 112.0890023835.

The spelling of 1408280 in words is "one million, four hundred eight thousand, two hundred eighty".