1421298 has 18 divisors (see below), whose sum is σ = 3090477. Its totient is φ = 472080.

The previous prime is 1421293. The next prime is 1421309. The reversal of 1421298 is 8921241.

It can be written as a sum of positive squares in 2 ways, for example, as 1375929 + 45369 = 1173^2 + 213^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=843.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421291) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4918 + ... + 5198.

2^1421298 is an apocalyptic number.

1421298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1421298 is an abundant number, since it is smaller than the sum of its proper divisors (1669179).

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

1421298 is an equidigital number, since it uses as much as digits as its factorization.

1421298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 286 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1421298 is about 1192.1820330805. The cubic root of 1421298 is about 112.4333234529.

Multiplying 1421298 by its product of digits (1152), we get a square (1637335296 = 40464²).

It can be divided in two parts, 14 and 21298, that added together give a palindrome (21312).

The spelling of 1421298 in words is "one million, four hundred twenty-one thousand, two hundred ninety-eight".