1275150240 has 576 divisors, whose sum is σ = 5521291776. Its totient is φ = 260775936.

The previous prime is 1275150223. The next prime is 1275150241. The reversal of 1275150240 is 420515721.

1275150240 is a `hidden beast` number, since 1 + 275 + 150 + 240 = 666.

It is not an unprimeable number, because it can be changed into a prime (1275150241) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4848349 + ... + 4848611.

It is an arithmetic number, because the mean of its divisors is an integer number (9585576).

Almost surely, 2^1275150240 is an apocalyptic number.

1275150240 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 1275150240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2760645888).

1275150240 is an abundant number, since it is smaller than the sum of its proper divisors (4246141536).

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

1275150240 is a wasteful number, since it uses less digits than its factorization.

1275150240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 1275150240 is about 35709.2458615412. The cubic root of 1275150240 is about 1084.3940325760.

Adding to 1275150240 its reverse (420515721), we get a palindrome (1695665961).

The spelling of 1275150240 in words is "one billion, two hundred seventy-five million, one hundred fifty thousand, two hundred forty".