1420888 has 16 divisors (see below), whose sum is σ = 3044880. Its totient is φ = 608928.

The previous prime is 1420883. The next prime is 1420891. The reversal of 1420888 is 8880241.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420883) 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, 12631 + ... + 12742.

It is an arithmetic number, because the mean of its divisors is an integer number (190305).

2^1420888 is an apocalyptic number.

It is an amenable number.

1420888 is an abundant number, since it is smaller than the sum of its proper divisors (1623992).

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

1420888 is a wasteful number, since it uses less digits than its factorization.

1420888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25386 (or 25382 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 1420888 is about 1192.0100670716. The cubic root of 1420888 is about 112.4225112479.

It can be divided in two parts, 14 and 20888, that added together give a palindrome (20902).

The spelling of 1420888 in words is "one million, four hundred twenty thousand, eight hundred eighty-eight".