1320033040 has 20 divisors (see below), whose sum is σ = 3069077004. Its totient is φ = 528013184.

The previous prime is 1320032899. The next prime is 1320033059. The reversal of 1320033040 is 403300231.

It can be written as a sum of positive squares in 2 ways, for example, as 541399824 + 778633216 = 23268^2 + 27904^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8250127 + ... + 8250286.

Almost surely, 2^1320033040 is an apocalyptic number.

1320033040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320033040 is an abundant number, since it is smaller than the sum of its proper divisors (1749043964).

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

1320033040 is a wasteful number, since it uses less digits than its factorization.

1320033040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500426 (or 16500420 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1320033040 is about 36332.2589443596. The cubic root of 1320033040 is about 1096.9704628348.

Adding to 1320033040 its reverse (403300231), we get a palindrome (1723333271).

The spelling of 1320033040 in words is "one billion, three hundred twenty million, thirty-three thousand, forty".