1420328 has 32 divisors (see below), whose sum is σ = 3279360. Its totient is φ = 561600.

The previous prime is 1420303. The next prime is 1420357. The reversal of 1420328 is 8230241.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

2^1420328 is an apocalyptic number.

It is an amenable number.

1420328 is an abundant number, since it is smaller than the sum of its proper divisors (1859032).

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

1420328 is a wasteful number, since it uses less digits than its factorization.

1420328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1420328 is about 1191.7751465776. The cubic root of 1420328 is about 112.4077399971.

Adding to 1420328 its reverse (8230241), we get a palindrome (9650569).

The spelling of 1420328 in words is "one million, four hundred twenty thousand, three hundred twenty-eight".