1321430 has 32 divisors (see below), whose sum is σ = 2667168. Its totient is φ = 467200.

The previous prime is 1321429. The next prime is 1321447. The reversal of 1321430 is 341231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4364 + ... + 4656.

It is an arithmetic number, because the mean of its divisors is an integer number (83349).

2^1321430 is an apocalyptic number.

1321430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321430 is an abundant number, since it is smaller than the sum of its proper divisors (1345738).

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

1321430 is a wasteful number, since it uses less digits than its factorization.

1321430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1321430 is about 1149.5346884718. The cubic root of 1321430 is about 109.7357292445.

Adding to 1321430 its reverse (341231), we get a palindrome (1662661).

The spelling of 1321430 in words is "one million, three hundred twenty-one thousand, four hundred thirty".