1320454 has 4 divisors (see below), whose sum is σ = 1980684. Its totient is φ = 660226.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320454 is 4540231.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1320454² = 3487197532232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330112 + ... + 330115.

It is an arithmetic number, because the mean of its divisors is an integer number (495171).

2^1320454 is an apocalyptic number.

1320454 is a deficient number, since it is larger than the sum of its proper divisors (660230).

1320454 is an equidigital number, since it uses as much as digits as its factorization.

1320454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660229.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1320454 is about 1149.1100904613. The cubic root of 1320454 is about 109.7087058807.

Adding to 1320454 its reverse (4540231), we get a palindrome (5860685).

The spelling of 1320454 in words is "one million, three hundred twenty thousand, four hundred fifty-four".