1320210040 has 16 divisors (see below), whose sum is σ = 2970472680. Its totient is φ = 528084000.

The previous prime is 1320210029. The next prime is 1320210049. The reversal of 1320210040 is 400120231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320210040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320210049) 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, 16502586 + ... + 16502665.

Almost surely, 2^1320210040 is an apocalyptic number.

1320210040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320210040 is an abundant number, since it is smaller than the sum of its proper divisors (1650262640).

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

1320210040 is a wasteful number, since it uses less digits than its factorization.

1320210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33005262 (or 33005258 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1320210040 is about 36334.6947145562. The cubic root of 1320210040 is about 1097.0194906719.

Adding to 1320210040 its reverse (400120231), we get a palindrome (1720330271).

The spelling of 1320210040 in words is "one billion, three hundred twenty million, two hundred ten thousand, forty".