1320450733 has 16 divisors (see below), whose sum is σ = 1589701120. Its totient is φ = 1071443376.

The previous prime is 1320450731. The next prime is 1320450749. The reversal of 1320450733 is 3370540231.

It is a cyclic number.

It is not a de Polignac number, because 1320450733 - 2¹ = 1320450731 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 229510 + ... + 235192.

It is an arithmetic number, because the mean of its divisors is an integer number (99356320).

Almost surely, 2^1320450733 is an apocalyptic number.

It is an amenable number.

1320450733 is a deficient number, since it is larger than the sum of its proper divisors (269250387).

1320450733 is a wasteful number, since it uses less digits than its factorization.

1320450733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7456.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 1320450733 is about 36338.0067284930. The cubic root of 1320450733 is about 1097.0861540207.

Adding to 1320450733 its reverse (3370540231), we get a palindrome (4690990964).

The spelling of 1320450733 in words is "one billion, three hundred twenty million, four hundred fifty thousand, seven hundred thirty-three".