1321434 has 24 divisors (see below), whose sum is σ = 2970240. Its totient is φ = 440316.

The previous prime is 1321429. The next prime is 1321447. The reversal of 1321434 is 4341231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874 + ... + 1845.

It is an arithmetic number, because the mean of its divisors is an integer number (123760).

2^1321434 is an apocalyptic number.

1321434 is an abundant number, since it is smaller than the sum of its proper divisors (1648806).

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

1321434 is an equidigital number, since it uses as much as digits as its factorization.

1321434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2724 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1321434 is about 1149.5364283049. The cubic root of 1321434 is about 109.7358399686.

Adding to 1321434 its reverse (4341231), we get a palindrome (5662665).

The spelling of 1321434 in words is "one million, three hundred twenty-one thousand, four hundred thirty-four".