1421798 has 16 divisors (see below), whose sum is σ = 2497824. Its totient is φ = 594240.

The previous prime is 1421779. The next prime is 1421801. The reversal of 1421798 is 8971241.

It is a congruent 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, 665 + ... + 1812.

It is an arithmetic number, because the mean of its divisors is an integer number (156114).

2^1421798 is an apocalyptic number.

1421798 is a deficient number, since it is larger than the sum of its proper divisors (1076026).

1421798 is a wasteful number, since it uses less digits than its factorization.

1421798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527.

The product of its digits is 4032, while the sum is 32.

The square root of 1421798 is about 1192.3917141611. The cubic root of 1421798 is about 112.4465062550.

It can be divided in two parts, 14 and 21798, that added together give a palindrome (21812).

The spelling of 1421798 in words is "one million, four hundred twenty-one thousand, seven hundred ninety-eight".