1420408 has 16 divisors (see below), whose sum is σ = 2905560. Its totient is φ = 645600.

The previous prime is 1420403. The next prime is 1420429. The reversal of 1420408 is 8040241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420403) 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 3 ways as a sum of consecutive naturals, for example, 7983 + ... + 8158.

2^1420408 is an apocalyptic number.

It is an amenable number.

1420408 is an abundant number, since it is smaller than the sum of its proper divisors (1485152).

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

1420408 is a wasteful number, since it uses less digits than its factorization.

1420408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158 (or 16154 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1420408 is about 1191.8087094832. The cubic root of 1420408 is about 112.4098504135.

Adding to 1420408 its reverse (8040241), we get a palindrome (9460649).

The spelling of 1420408 in words is "one million, four hundred twenty thousand, four hundred eight".