1420998 has 16 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 463496.

The previous prime is 1420981. The next prime is 1420999. The reversal of 1420998 is 8990241.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420999) 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, 2238 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1420998 is an apocalyptic number.

1420998 is an abundant number, since it is smaller than the sum of its proper divisors (1482042).

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

1420998 is a wasteful number, since it uses less digits than its factorization.

1420998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5091.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1420998 is about 1192.0562067285. The cubic root of 1420998 is about 112.4254122875.

It can be divided in two parts, 14 and 20998, that added together give a palindrome (21012).

The spelling of 1420998 in words is "one million, four hundred twenty thousand, nine hundred ninety-eight".