1260550920 has 32 divisors (see below), whose sum is σ = 3781653120. Its totient is φ = 336146880.

The previous prime is 1260550919. The next prime is 1260550927. The reversal of 1260550920 is 290550621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1260550927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5252176 + ... + 5252415.

It is an arithmetic number, because the mean of its divisors is an integer number (118176660).

Almost surely, 2^1260550920 is an apocalyptic number.

1260550920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1260550920 is an abundant number, since it is smaller than the sum of its proper divisors (2521102200).

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

1260550920 is a wasteful number, since it uses less digits than its factorization.

1260550920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10504605 (or 10504601 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1260550920 is about 35504.2380568855. The cubic root of 1260550920 is about 1080.2396930268.

The spelling of 1260550920 in words is "one billion, two hundred sixty million, five hundred fifty thousand, nine hundred twenty".