1320450734 has 8 divisors (see below), whose sum is σ = 1980830280. Its totient is φ = 660173976.

The previous prime is 1320450731. The next prime is 1320450749. The reversal of 1320450734 is 4370540231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1320450734² = 3487180281842277512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320450697 and 1320450706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320450731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37937 + ... + 63875.

It is an arithmetic number, because the mean of its divisors is an integer number (247603785).

Almost surely, 2^1320450734 is an apocalyptic number.

1320450734 is a deficient number, since it is larger than the sum of its proper divisors (660379546).

1320450734 is a wasteful number, since it uses less digits than its factorization.

1320450734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51394.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 1320450734 is about 36338.0067422527. The cubic root of 1320450734 is about 1097.0861542977.

Adding to 1320450734 its reverse (4370540231), we get a palindrome (5690990965).

The spelling of 1320450734 in words is "one billion, three hundred twenty million, four hundred fifty thousand, seven hundred thirty-four".