1260040160 has 48 divisors (see below), whose sum is σ = 2988525456. Its totient is φ = 502038528.

The previous prime is 1260040151. The next prime is 1260040183. The reversal of 1260040160 is 610400621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 25799 + ... + 56441.

It is an arithmetic number, because the mean of its divisors is an integer number (62260947).

Almost surely, 2^1260040160 is an apocalyptic number.

1260040160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260040160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494262728).

1260040160 is an abundant number, since it is smaller than the sum of its proper divisors (1728485296).

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

1260040160 is a wasteful number, since it uses less digits than its factorization.

1260040160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30915 (or 30907 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1260040160 is about 35497.0443840047. The cubic root of 1260040160 is about 1080.0937732935.

Adding to 1260040160 its reverse (610400621), we get a palindrome (1870440781).

The spelling of 1260040160 in words is "one billion, two hundred sixty million, forty thousand, one hundred sixty".