1421310 has 64 divisors (see below), whose sum is σ = 3836160. Its totient is φ = 334080.

The previous prime is 1421309. The next prime is 1421317. The reversal of 1421310 is 131241.

It is a happy number.

1421310 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×1421310² = 4040244232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19434 + ... + 19506.

It is an arithmetic number, because the mean of its divisors is an integer number (59940).

2^1421310 is an apocalyptic number.

1421310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918080).

1421310 is an abundant number, since it is smaller than the sum of its proper divisors (2414850).

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

1421310 is a wasteful number, since it uses less digits than its factorization.

1421310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1421310 is about 1192.1870658584. The cubic root of 1421310 is about 112.4336398763.

Multiplying 1421310 by its sum of digits (12), we get a triangular number (17055720 = T₅₈₄₀).

Adding to 1421310 its reverse (131241), we get a palindrome (1552551).

The spelling of 1421310 in words is "one million, four hundred twenty-one thousand, three hundred ten".