1206797520 has 40 divisors (see below), whose sum is σ = 3741073056. Its totient is φ = 321812608.

The previous prime is 1206797497. The next prime is 1206797531. The reversal of 1206797520 is 257976021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513922 + ... + 2514401.

Almost surely, 2^1206797520 is an apocalyptic number.

1206797520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206797520 is an abundant number, since it is smaller than the sum of its proper divisors (2534275536).

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

1206797520 is a wasteful number, since it uses less digits than its factorization.

1206797520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028339 (or 5028333 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 1206797520 is about 34738.9913497787. The cubic root of 1206797520 is about 1064.6613042753.

The spelling of 1206797520 in words is "one billion, two hundred six million, seven hundred ninety-seven thousand, five hundred twenty".