1320233040 has 160 divisors (see below), whose sum is σ = 5197167360. Its totient is φ = 301764096.

The previous prime is 1320233027. The next prime is 1320233059. The reversal of 1320233040 is 403320231.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28539 + ... + 58778.

It is an arithmetic number, because the mean of its divisors is an integer number (32482296).

Almost surely, 2^1320233040 is an apocalyptic number.

1320233040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320233040 is an abundant number, since it is smaller than the sum of its proper divisors (3876934320).

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

1320233040 is a wasteful number, since it uses less digits than its factorization.

1320233040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87346 (or 87334 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1320233040 is about 36335.0112150801. The cubic root of 1320233040 is about 1097.0258611990.

Adding to 1320233040 its reverse (403320231), we get a palindrome (1723553271).

The spelling of 1320233040 in words is "one billion, three hundred twenty million, two hundred thirty-three thousand, forty".